Vandalia Weather Records (USC00238577)

Record envelope, standing records and threshold days for Vandalia (USC00238577), Missouri, United States, with 116 years of record.

Key Facts for Vandalia

Vandalia (USC00238577) is a weather station in Missouri, United States at 39.31 latitude and -91.49 longitude, 233 m (764 ft) above sea level.
The station reports from 1911 to 2026, 116 years of record.
1,464 records set at Vandalia still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Vandalia set a daily record high maximum temperature of 36.1 C (97.0 F) on 20 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Missouri, United States, 39.31 latitude, -91.49 longitude.
Elevation: 233 m (764 ft).
Period of record: 1911 to 2026, 116 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

13 days at or beyond a record

The band shows the record high and record low for each calendar day at Vandalia. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Vandalia, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.0 C (77.0 F)	-31.1 C (-24.0 F)	17.2 C (63.0 F)	-22.2 C (-8.0 F)
Feb	27.2 C (81.0 F)	-26.7 C (-16.1 F)	22.2 C (72.0 F)	-17.8 C (0.0 F)
Mar	31.1 C (88.0 F)	-24.4 C (-11.9 F)	30.6 C (87.1 F)	-12.2 C (10.0 F)
Apr	33.3 C (91.9 F)	-7.8 C (18.0 F)	30.0 C (86.0 F)	2.2 C (36.0 F)
May	35.6 C (96.1 F)	-1.7 C (28.9 F)	30.0 C (86.0 F)	3.3 C (37.9 F)
Jun	40.6 C (105.1 F)	1.7 C (35.1 F)	32.8 C (91.0 F)	12.2 C (54.0 F)
Jul	42.2 C (108.0 F)	7.2 C (45.0 F)	35.6 C (96.1 F)	15.6 C (60.1 F)
Aug	41.1 C (106.0 F)	4.4 C (39.9 F)	33.9 C (93.0 F)	13.3 C (55.9 F)
Sep	42.2 C (108.0 F)	0.0 C (32.0 F)	37.8 C (100.0 F)	12.2 C (54.0 F)
Oct	33.9 C (93.0 F)	-6.7 C (19.9 F)	31.1 C (88.0 F)	8.3 C (46.9 F)
Nov	31.1 C (88.0 F)	-20.6 C (-5.1 F)	n/a	n/a
Dec	23.3 C (73.9 F)	-31.1 C (-24.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Vandalia still stand. 1913 holds the most, with 45.

Standing records at Vandalia by the year they were set
Year set	Standing records
1911	42
1912	30
1913	45
1914	34
1915	3
1944	3
1945	17
1946	29
1947	22
1948	20
1949	20
1950	36
1951	18
1952	12
1953	3
1954	18
1955	18
1956	11
1957	7
1958	16
1959	18
1960	18
1961	14
1962	23
1963	23
1964	11
1965	28
1966	19
1967	31
1968	10
1969	4
1970	22
1971	14
1972	21
1973	8
1974	20
1975	14
1976	30
1977	18
1978	11
1979	22
1980	30
1981	19
1982	14
1983	25
1987	11
1988	18
1989	41
1990	18
1991	22
1992	11
1993	12
1994	7
1995	8
1996	19
1997	16
1998	23
1999	9
2000	17
2001	10
2002	10
2003	13
2004	10
2005	8
2006	16
2007	12
2008	11
2009	17
2010	6
2011	9
2012	22
2013	12
2014	25
2015	16
2016	9
2017	19
2018	25
2019	15
2020	5
2021	17
2022	18
2023	7
2024	18
2025	13
2026	18

All-Time Record Progression

5 new records

5 all-time records were set at Vandalia between 31 May 1974 and 2 February 2011. Each dot is a new record.

When Vandalia set new all-time records
Date	Kind	Detail
1974-05-31	Record daily precipitation	Record daily precipitation 129.8 mm (5.1 in)
1989-12-22	Record low maximum temperature	Record low maximum temperature -22.2 C (-8.0 F)
1991-07-10	Record daily precipitation	Record daily precipitation 141.7 mm (5.6 in)
2011-02-02	Record daily snowfall	Record daily snowfall 43.2 cm (17.0 in)
2011-02-02	Record snow depth	Record snow depth 48.3 cm (19.0 in)

Wettest Day of Each Month

Jul: 141.7 mm (5.6 in)

The wettest day on record for each calendar month at Vandalia. The most was 141.7 mm (5.6 in) on 10 July 1991.

Record daily precipitation for each month at Vandalia
Month	Record daily precipitation (mm)	Date
Jan	57.2 mm (2.3 in)	11 January 2020
Feb	54.6 mm (2.1 in)	10 February 1959
Mar	80.0 mm (3.1 in)	27 March 2018
Apr	89.2 mm (3.5 in)	30 April 2017
May	129.8 mm (5.1 in)	31 May 1974
Jun	93.2 mm (3.7 in)	13 June 1970
Jul	141.7 mm (5.6 in)	10 July 1991
Aug	82.3 mm (3.2 in)	23 August 2000
Sep	119.6 mm (4.7 in)	16 September 1965
Oct	73.7 mm (2.9 in)	13 October 1969
Nov	82.8 mm (3.3 in)	16 November 1964
Dec	66.0 mm (2.6 in)	21 December 1949

Period of Record Coverage

1911 to 2026

85 years of record at Vandalia, 1911 to 2026. 13 years have data for under 90 percent of days and are left out of rankings: 1911, 1915, 1944, 1945, 1952, 1953, 1954, 1955 and others.

Days with data per year at Vandalia
Year	Days with data	Share of year	Complete
1911	308	84%	No
1912	355	97%	Yes
1913	355	97%	Yes
1914	357	98%	Yes
1915	42	12%	No
1944	101	28%	No
1945	264	72%	No
1946	362	99%	Yes
1947	350	96%	Yes
1948	356	97%	Yes
1949	359	98%	Yes
1950	362	99%	Yes
1951	331	91%	Yes
1952	119	33%	No
1953	30	8%	No
1954	157	43%	No
1955	295	81%	No
1956	214	58%	No
1957	335	92%	Yes
1958	365	100%	Yes
1959	335	92%	Yes
1960	349	95%	Yes
1961	365	100%	Yes
1962	362	99%	Yes
1963	363	99%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	363	99%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	364	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	365	100%	Yes
1982	358	98%	Yes
1983	328	90%	No
1987	334	92%	Yes
1988	365	100%	Yes
1989	357	98%	Yes
1990	360	99%	Yes
1991	361	99%	Yes
1992	332	91%	Yes
1993	358	98%	Yes
1994	344	94%	Yes
1995	312	85%	No
1996	330	90%	Yes
1997	353	97%	Yes
1998	363	99%	Yes
1999	363	99%	Yes
2000	361	99%	Yes
2001	354	97%	Yes
2002	344	94%	Yes
2003	348	95%	Yes
2004	356	97%	Yes
2005	362	99%	Yes
2006	361	99%	Yes
2007	359	98%	Yes
2008	362	99%	Yes
2009	361	99%	Yes
2010	361	99%	Yes
2011	354	97%	Yes
2012	341	93%	Yes
2013	346	95%	Yes
2014	349	96%	Yes
2015	324	89%	No
2016	356	97%	Yes
2017	354	97%	Yes
2018	357	98%	Yes
2019	359	98%	Yes
2020	359	98%	Yes
2021	362	99%	Yes
2022	361	99%	Yes
2023	349	96%	Yes
2024	339	93%	Yes
2025	346	95%	Yes
2026	274	75%	No

Latest Records

Latest records at Vandalia
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 2026	Vandalia, US	daily high max (Provisional)	36.1 C (97.0 F)	1.7 C (3.1 F)	53 years	29 of 100 (Routine)
20 September 2026	Vandalia, US	daily high min (Tie, Provisional)	21.1 C (70.0 F)	tie	77 years	8 of 100 (Routine)
19 September 2026	Vandalia, US	daily high min (Provisional)	22.8 C (73.0 F)	1.1 C (2.0 F)	48 years	26 of 100 (Routine)
19 September 2026	Vandalia, US	daily high max (Tie, Provisional)	36.1 C (97.0 F)	tie	53 years	6 of 100 (Routine)
18 September 2026	Vandalia, US	daily high min (Provisional)	22.2 C (72.0 F)	0.5 C (0.9 F)	72 years	32 of 100 (Routine)
18 September 2026	Vandalia, US	daily high max (Provisional)	36.7 C (98.1 F)	1.1 C (2.0 F)	53 years	28 of 100 (Routine)
16 September 2026	Vandalia, US	daily high min (Provisional)	21.1 C (70.0 F)	0.5 C (0.9 F)	115 years	41 of 100 (Notable)
5 September 2026	Vandalia, US	daily high min (Provisional)	23.9 C (75.0 F)	1.7 C (3.1 F)	36 years	23 of 100 (Routine)
4 September 2026	Vandalia, US	daily high min (Provisional)	24.4 C (75.9 F)	2.2 C (4.0 F)	113 years	44 of 100 (Notable)
3 September 2026	Vandalia, US	monthly high min (Tie, Provisional)	25.0 C (77.0 F)	tie	114 years	12 of 100 (Routine)
3 September 2026	Vandalia, US	daily high max (Tie, Provisional)	36.7 C (98.1 F)	tie	112 years	10 of 100 (Routine)
15 August 2026	Vandalia, US	daily high min (Provisional)	25.6 C (78.1 F)	1.7 C (3.1 F)	37 years	26 of 100 (Routine)
12 August 2026	Vandalia, US	daily high min (Tie)	23.9 C (75.0 F)	tie	16 years	3 of 100 (Routine)
2 August 2026	Vandalia, US	daily low max	20.6 C (69.1 F)	3.8 C (6.8 F)	76 years	41 of 100 (Notable)
1 August 2026	Vandalia, US	daily rain	25.4 mm (1.0 in)	6.9 mm (0.27 in)	72 years	35 of 100 (Notable)
27 July 2026	Vandalia, US	daily high min	25.0 C (77.0 F)	0.6 C (1.1 F)	39 years	22 of 100 (Routine)
29 June 2026	Vandalia, US	daily high min (Tie)	23.9 C (75.0 F)	tie	112 years	10 of 100 (Routine)
19 May 2026	Vandalia, US	daily rain	47.2 mm (1.9 in)	4.0 mm (0.16 in)	39 years	23 of 100 (Routine)
18 May 2026	Vandalia, US	daily high min	19.4 C (66.9 F)	1.1 C (2.0 F)	115 years	42 of 100 (Notable)
28 April 2026	Vandalia, US	daily rain	71.9 mm (2.8 in)	7.9 mm (0.31 in)	16 years	21 of 100 (Routine)

Climate Trend

62 complete years, 1912 to 2025

One stripe for each of 62 complete years at Vandalia, 1912 to 2025. Blue stripes are years cooler than the station's own mean of 12.0 C (53.7 F); red stripes are warmer. The coolest year was 2014, at 9.9 C (49.9 F), and the warmest was 1946, at 13.7 C (56.7 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at Vandalia as warming stripes, 1912 to 2025
Year	Annual mean temperature	Difference from the station mean
1912	11.3 C	-0.73 C
1913	13.6 C	+1.50 C
1914	13.1 C	+1.06 C
1946	13.7 C	+1.67 C
1947	11.8 C	-0.23 C
1949	12.3 C	+0.29 C
1950	11.6 C	-0.48 C
1958	11.4 C	-0.63 C
1961	11.5 C	-0.54 C
1962	11.8 C	-0.21 C
1963	12.3 C	+0.24 C
1964	12.8 C	+0.74 C
1965	12.6 C	+0.56 C
1966	11.8 C	-0.30 C
1967	11.7 C	-0.33 C
1968	11.8 C	-0.30 C
1969	11.5 C	-0.55 C
1970	12.2 C	+0.16 C
1971	12.9 C	+0.89 C
1972	12.3 C	+0.20 C
1973	13.1 C	+1.05 C
1974	12.4 C	+0.31 C
1975	12.8 C	+0.73 C
1976	12.2 C	+0.12 C
1977	12.5 C	+0.47 C
1978	11.3 C	-0.80 C
1979	11.4 C	-0.69 C
1980	12.7 C	+0.62 C
1981	12.7 C	+0.68 C
1982	12.0 C	-0.07 C
1988	11.7 C	-0.36 C
1989	10.4 C	-1.70 C
1990	12.6 C	+0.54 C
1991	12.5 C	+0.40 C
1993	10.7 C	-1.40 C
1994	11.9 C	-0.14 C
1997	11.1 C	-0.94 C
1998	12.9 C	+0.88 C
1999	12.6 C	+0.50 C
2000	11.8 C	-0.27 C
2001	12.3 C	+0.20 C
2004	11.5 C	-0.51 C
2005	12.5 C	+0.48 C
2006	12.7 C	+0.60 C
2007	12.3 C	+0.25 C
2008	10.6 C	-1.41 C
2009	11.0 C	-1.02 C
2010	11.5 C	-0.54 C
2011	11.9 C	-0.14 C
2012	13.5 C	+1.42 C
2013	10.4 C	-1.66 C
2014	9.9 C	-2.11 C
2016	12.8 C	+0.73 C
2017	12.6 C	+0.56 C
2018	11.6 C	-0.46 C
2019	11.3 C	-0.80 C
2020	11.8 C	-0.30 C
2021	12.3 C	+0.22 C
2022	11.4 C	-0.69 C
2023	13.2 C	+1.11 C
2024	13.0 C	+0.91 C
2025	12.1 C	+0.00 C

The fitted trend in annual mean temperature here over 1912 to 2025 is -0.06 C (-0.13 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.11 F (-0.24 to 0.03) per decade. The slope is a straight line fitted to 62 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Vandalia
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.06 C (-0.13 to 0.01) per decade	-0.11 F (-0.24 to 0.03) per decade	1912 to 2025	62	Not clearly different from zero
Mean daily maximum	-0.12 C (-0.21 to -0.04) per decade	-0.2 F (-0.4 to -0.1) per decade	1912 to 2025	62	Fall
Mean daily minimum	0.01 C (-0.07 to 0.09) per decade	0.01 F (-0.13 to 0.15) per decade	1912 to 2025	62	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1911 to 2026

Yearly extremes at Vandalia: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.2 C (108.0 F)	1954	36.7 C (98.1 F)	85
Coldest night (TNn)	-31.1 C (-24.0 F)	1912	-21.7 C (-7.1 F)	85
Wettest day (Rx1day)	141.7 mm (5.6 in)	1991	67.7 mm (2.7 in)	86
Wettest five days (Rx5day)	213.8 mm (8.4 in)	1970	96.8 mm (3.8 in)	86
Longest dry spell (CDD)	49 days	1947	22 days	86

Hottest day (TXx)

The hottest day of the year at Vandalia, 1911 to 2026. The record is 42.2 C (108.0 F) in 1954, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Vandalia by year
Year	Hottest day (TXx)
1911	41.1 C (106.0 F)
1912	37.8 C (100.0 F)
1913	40.6 C (105.1 F)
1914	40.6 C (105.1 F)
1915	16.7 C (62.1 F)
1916	n/a
1944	35.6 C (96.1 F)
1945	38.9 C (102.0 F)
1946	38.9 C (102.0 F)
1947	39.4 C (102.9 F)
1948	34.4 C (93.9 F)
1949	35.6 C (96.1 F)
1950	35.0 C (95.0 F)
1951	36.1 C (97.0 F)
1952	37.2 C (99.0 F)
1953	17.8 C (64.0 F)
1954	42.2 C (108.0 F)
1955	36.7 C (98.1 F)
1956	37.2 C (99.0 F)
1957	36.7 C (98.1 F)
1958	34.4 C (93.9 F)
1959	36.1 C (97.0 F)
1960	37.8 C (100.0 F)
1961	35.0 C (95.0 F)
1962	37.8 C (100.0 F)
1963	38.9 C (102.0 F)
1964	39.4 C (102.9 F)
1965	35.0 C (95.0 F)
1966	38.9 C (102.0 F)
1967	33.9 C (93.0 F)
1968	34.4 C (93.9 F)
1969	35.6 C (96.1 F)
1970	38.3 C (100.9 F)
1971	36.7 C (98.1 F)
1972	37.8 C (100.0 F)
1973	36.7 C (98.1 F)
1974	38.3 C (100.9 F)
1975	39.4 C (102.9 F)
1976	38.9 C (102.0 F)
1977	36.7 C (98.1 F)
1978	35.6 C (96.1 F)
1979	38.9 C (102.0 F)
1980	42.2 C (108.0 F)
1981	36.1 C (97.0 F)
1982	36.1 C (97.0 F)
1983	40.0 C (104.0 F)
1987	39.4 C (102.9 F)
1988	40.6 C (105.1 F)
1989	36.7 C (98.1 F)
1990	37.2 C (99.0 F)
1991	36.7 C (98.1 F)
1992	34.4 C (93.9 F)
1993	35.0 C (95.0 F)
1994	35.0 C (95.0 F)
1995	37.2 C (99.0 F)
1996	36.7 C (98.1 F)
1997	36.7 C (98.1 F)
1998	35.6 C (96.1 F)
1999	38.3 C (100.9 F)
2000	36.1 C (97.0 F)
2001	36.7 C (98.1 F)
2002	36.1 C (97.0 F)
2003	38.3 C (100.9 F)
2004	33.9 C (93.0 F)
2005	40.0 C (104.0 F)
2006	37.8 C (100.0 F)
2007	38.9 C (102.0 F)
2008	35.0 C (95.0 F)
2009	35.6 C (96.1 F)
2010	35.6 C (96.1 F)
2011	38.3 C (100.9 F)
2012	40.6 C (105.1 F)
2013	36.1 C (97.0 F)
2014	33.9 C (93.0 F)
2015	34.4 C (93.9 F)
2016	35.6 C (96.1 F)
2017	36.7 C (98.1 F)
2018	35.6 C (96.1 F)
2019	33.3 C (91.9 F)
2020	33.9 C (93.0 F)
2021	36.1 C (97.0 F)
2022	37.2 C (99.0 F)
2023	38.3 C (100.9 F)
2024	36.7 C (98.1 F)
2025	34.4 C (93.9 F)
2026	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Vandalia, 1911 to 2026. The record is -31.1 C (-24.0 F) in 1912, marked on the chart; the median year is -21.7 C (-7.1 F).

Coldest night (TNn) at Vandalia by year
Year	Coldest night (TNn)
1911	-13.3 C (8.1 F)
1912	-31.1 C (-24.0 F)
1913	-17.8 C (0.0 F)
1914	-21.1 C (-6.0 F)
1915	-25.0 C (-13.0 F)
1916	n/a
1944	-22.8 C (-9.0 F)
1945	-21.7 C (-7.1 F)
1946	-15.6 C (3.9 F)
1947	-25.6 C (-14.1 F)
1948	-26.1 C (-15.0 F)
1949	-20.0 C (-4.0 F)
1950	-22.8 C (-9.0 F)
1951	-25.0 C (-13.0 F)
1952	-11.1 C (12.0 F)
1953	-12.8 C (9.0 F)
1954	-12.2 C (10.0 F)
1955	-20.6 C (-5.1 F)
1956	-13.9 C (7.0 F)
1957	-21.7 C (-7.1 F)
1958	-23.3 C (-9.9 F)
1959	-24.4 C (-11.9 F)
1960	-24.4 C (-11.9 F)
1961	-21.7 C (-7.1 F)
1962	-23.9 C (-11.0 F)
1963	-25.0 C (-13.0 F)
1964	-20.6 C (-5.1 F)
1965	-24.4 C (-11.9 F)
1966	-24.4 C (-11.9 F)
1967	-20.6 C (-5.1 F)
1968	-25.6 C (-14.1 F)
1969	-19.4 C (-2.9 F)
1970	-25.6 C (-14.1 F)
1971	-20.0 C (-4.0 F)
1972	-25.0 C (-13.0 F)
1973	-20.6 C (-5.1 F)
1974	-26.7 C (-16.1 F)
1975	-22.8 C (-9.0 F)
1976	-25.0 C (-13.0 F)
1977	-27.8 C (-18.0 F)
1978	-24.4 C (-11.9 F)
1979	-26.7 C (-16.1 F)
1980	-22.8 C (-9.0 F)
1981	-24.4 C (-11.9 F)
1982	-28.9 C (-20.0 F)
1983	-17.2 C (1.0 F)
1987	-14.4 C (6.1 F)
1988	-25.0 C (-13.0 F)
1989	-31.1 C (-24.0 F)
1990	-17.8 C (0.0 F)
1991	-18.3 C (-0.9 F)
1992	-15.6 C (3.9 F)
1993	-22.2 C (-8.0 F)
1994	-23.9 C (-11.0 F)
1995	-18.3 C (-0.9 F)
1996	-25.6 C (-14.1 F)
1997	-22.8 C (-9.0 F)
1998	-17.8 C (0.0 F)
1999	-25.6 C (-14.1 F)
2000	-20.0 C (-4.0 F)
2001	-21.1 C (-6.0 F)
2002	-19.4 C (-2.9 F)
2003	-20.6 C (-5.1 F)
2004	-20.0 C (-4.0 F)
2005	-17.8 C (0.0 F)
2006	-18.3 C (-0.9 F)
2007	-20.0 C (-4.0 F)
2008	-17.8 C (0.0 F)
2009	-21.1 C (-6.0 F)
2010	-21.7 C (-7.1 F)
2011	-23.9 C (-11.0 F)
2012	-11.7 C (10.9 F)
2013	-16.7 C (1.9 F)
2014	-24.4 C (-11.9 F)
2015	-21.1 C (-6.0 F)
2016	-20.0 C (-4.0 F)
2017	-20.0 C (-4.0 F)
2018	-23.9 C (-11.0 F)
2019	-23.3 C (-9.9 F)
2020	-20.6 C (-5.1 F)
2021	-22.8 C (-9.0 F)
2022	-23.3 C (-9.9 F)
2023	-15.0 C (5.0 F)
2024	-26.1 C (-15.0 F)
2025	-20.6 C (-5.1 F)
2026	-22.2 C (-8.0 F)

Wettest day (Rx1day)

The wettest day of the year at Vandalia, 1911 to 2026. The record is 141.7 mm (5.6 in) in 1991, marked on the chart; the median year is 67.7 mm (2.7 in).

Wettest day (Rx1day) at Vandalia by year
Year	Wettest day (Rx1day)
1911	56.6 mm (2.2 in)
1912	72.4 mm (2.9 in)
1913	59.9 mm (2.4 in)
1914	71.1 mm (2.8 in)
1915	80.0 mm (3.1 in)
1916	38.1 mm (1.5 in)
1944	35.3 mm (1.4 in)
1945	87.1 mm (3.4 in)
1946	66.8 mm (2.6 in)
1947	47.8 mm (1.9 in)
1948	40.1 mm (1.6 in)
1949	94.0 mm (3.7 in)
1950	45.7 mm (1.8 in)
1951	50.3 mm (2.0 in)
1952	58.4 mm (2.3 in)
1953	10.4 mm (0.4 in)
1954	38.6 mm (1.5 in)
1955	57.2 mm (2.3 in)
1956	81.3 mm (3.2 in)
1957	65.5 mm (2.6 in)
1958	101.6 mm (4.0 in)
1959	55.1 mm (2.2 in)
1960	54.9 mm (2.2 in)
1961	108.0 mm (4.3 in)
1962	53.3 mm (2.1 in)
1963	75.9 mm (3.0 in)
1964	82.8 mm (3.3 in)
1965	119.6 mm (4.7 in)
1966	71.4 mm (2.8 in)
1967	70.1 mm (2.8 in)
1968	85.9 mm (3.4 in)
1969	73.7 mm (2.9 in)
1970	93.2 mm (3.7 in)
1971	41.7 mm (1.6 in)
1972	42.7 mm (1.7 in)
1973	99.8 mm (3.9 in)
1974	129.8 mm (5.1 in)
1975	86.4 mm (3.4 in)
1976	62.5 mm (2.5 in)
1977	45.5 mm (1.8 in)
1978	68.1 mm (2.7 in)
1979	58.9 mm (2.3 in)
1980	96.8 mm (3.8 in)
1981	71.6 mm (2.8 in)
1982	63.0 mm (2.5 in)
1983	62.2 mm (2.4 in)
1987	86.4 mm (3.4 in)
1988	72.4 mm (2.9 in)
1989	71.1 mm (2.8 in)
1990	99.1 mm (3.9 in)
1991	141.7 mm (5.6 in)
1992	51.6 mm (2.0 in)
1993	99.1 mm (3.9 in)
1994	72.6 mm (2.9 in)
1995	50.8 mm (2.0 in)
1996	83.1 mm (3.3 in)
1997	47.5 mm (1.9 in)
1998	58.7 mm (2.3 in)
1999	47.8 mm (1.9 in)
2000	82.3 mm (3.2 in)
2001	68.6 mm (2.7 in)
2002	57.9 mm (2.3 in)
2003	87.9 mm (3.5 in)
2004	61.0 mm (2.4 in)
2005	45.7 mm (1.8 in)
2006	67.3 mm (2.6 in)
2007	35.3 mm (1.4 in)
2008	111.8 mm (4.4 in)
2009	65.0 mm (2.6 in)
2010	94.5 mm (3.7 in)
2011	54.6 mm (2.1 in)
2012	57.1 mm (2.2 in)
2013	60.2 mm (2.4 in)
2014	91.4 mm (3.6 in)
2015	68.6 mm (2.7 in)
2016	68.6 mm (2.7 in)
2017	89.2 mm (3.5 in)
2018	80.0 mm (3.1 in)
2019	53.8 mm (2.1 in)
2020	57.2 mm (2.3 in)
2021	61.0 mm (2.4 in)
2022	34.5 mm (1.4 in)
2023	41.4 mm (1.6 in)
2024	81.3 mm (3.2 in)
2025	80.0 mm (3.1 in)
2026	71.9 mm (2.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Vandalia, 1911 to 2026. The record is 213.8 mm (8.4 in) in 1970, marked on the chart; the median year is 96.8 mm (3.8 in).

Wettest five days (Rx5day) at Vandalia by year
Year	Wettest five days (Rx5day)
1911	92.7 mm (3.6 in)
1912	75.7 mm (3.0 in)
1913	68.5 mm (2.7 in)
1914	90.1 mm (3.5 in)
1915	90.4 mm (3.6 in)
1916	40.6 mm (1.6 in)
1944	45.2 mm (1.8 in)
1945	83.3 mm (3.3 in)
1946	137.6 mm (5.4 in)
1947	87.1 mm (3.4 in)
1948	74.5 mm (2.9 in)
1949	121.9 mm (4.8 in)
1950	77.2 mm (3.0 in)
1951	72.8 mm (2.9 in)
1952	58.4 mm (2.3 in)
1953	14.5 mm (0.6 in)
1954	73.2 mm (2.9 in)
1955	124.4 mm (4.9 in)
1956	96.5 mm (3.8 in)
1957	102.8 mm (4.0 in)
1958	131.4 mm (5.2 in)
1959	97.0 mm (3.8 in)
1960	97.6 mm (3.8 in)
1961	148.2 mm (5.8 in)
1962	96.5 mm (3.8 in)
1963	87.8 mm (3.5 in)
1964	90.9 mm (3.6 in)
1965	130.3 mm (5.1 in)
1966	102.9 mm (4.1 in)
1967	90.4 mm (3.6 in)
1968	108.8 mm (4.3 in)
1969	185.9 mm (7.3 in)
1970	213.8 mm (8.4 in)
1971	84.4 mm (3.3 in)
1972	63.8 mm (2.5 in)
1973	108.0 mm (4.3 in)
1974	155.2 mm (6.1 in)
1975	126.6 mm (5.0 in)
1976	80.5 mm (3.2 in)
1977	93.0 mm (3.7 in)
1978	99.6 mm (3.9 in)
1979	87.4 mm (3.4 in)
1980	108.5 mm (4.3 in)
1981	171.1 mm (6.7 in)
1982	109.2 mm (4.3 in)
1983	98.7 mm (3.9 in)
1987	95.3 mm (3.8 in)
1988	100.6 mm (4.0 in)
1989	109.7 mm (4.3 in)
1990	132.7 mm (5.2 in)
1991	208.7 mm (8.2 in)
1992	94.0 mm (3.7 in)
1993	161.5 mm (6.4 in)
1994	54.4 mm (2.1 in)
1995	69.9 mm (2.8 in)
1996	93.6 mm (3.7 in)
1997	87.6 mm (3.4 in)
1998	100.6 mm (4.0 in)
1999	76.9 mm (3.0 in)
2000	111.3 mm (4.4 in)
2001	109.6 mm (4.3 in)
2002	129.0 mm (5.1 in)
2003	127.4 mm (5.0 in)
2004	79.8 mm (3.1 in)
2005	99.3 mm (3.9 in)
2006	104.9 mm (4.1 in)
2007	74.9 mm (2.9 in)
2008	170.8 mm (6.7 in)
2009	109.5 mm (4.3 in)
2010	132.5 mm (5.2 in)
2011	56.4 mm (2.2 in)
2012	74.1 mm (2.9 in)
2013	108.4 mm (4.3 in)
2014	138.6 mm (5.5 in)
2015	147.8 mm (5.8 in)
2016	80.3 mm (3.2 in)
2017	136.7 mm (5.4 in)
2018	110.0 mm (4.3 in)
2019	100.3 mm (3.9 in)
2020	77.0 mm (3.0 in)
2021	126.0 mm (5.0 in)
2022	60.0 mm (2.4 in)
2023	44.8 mm (1.8 in)
2024	95.5 mm (3.8 in)
2025	95.0 mm (3.7 in)
2026	76.5 mm (3.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Vandalia, 1911 to 2026. The record is 49 days in 1947, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Vandalia by year
Year	Longest dry spell (CDD)
1911	31 days
1912	27 days
1913	21 days
1914	27 days
1915	27 days
1916	19 days
1944	27 days
1945	24 days
1946	31 days
1947	49 days
1948	30 days
1949	28 days
1950	30 days
1951	14 days
1952	24 days
1953	12 days
1954	23 days
1955	26 days
1956	23 days
1957	22 days
1958	32 days
1959	26 days
1960	25 days
1961	17 days
1962	17 days
1963	36 days
1964	38 days
1965	20 days
1966	20 days
1967	20 days
1968	29 days
1969	18 days
1970	23 days
1971	25 days
1972	18 days
1973	17 days
1974	12 days
1975	15 days
1976	25 days
1977	25 days
1978	21 days
1979	39 days
1980	28 days
1981	21 days
1982	12 days
1983	26 days
1987	27 days
1988	31 days
1989	25 days
1990	18 days
1991	14 days
1992	18 days
1993	11 days
1994	9 days
1995	22 days
1996	20 days
1997	23 days
1998	27 days
1999	24 days
2000	16 days
2001	16 days
2002	32 days
2003	20 days
2004	24 days
2005	14 days
2006	19 days
2007	16 days
2008	22 days
2009	27 days
2010	20 days
2011	22 days
2012	26 days
2013	25 days
2014	20 days
2015	13 days
2016	20 days
2017	25 days
2018	17 days
2019	14 days
2020	20 days
2021	22 days
2022	18 days
2023	21 days
2024	29 days
2025	30 days
2026	14 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

62 years with a frost

Across 62 years with a frost, the median last spring frost at Vandalia falls on 16 April and the median first autumn frost on 19 October, which leaves a median of 188 days between them.

In 1990 to 2025 the median growing season was 189 days. That is 1 day more than in 1912 to 1982.

Fitted over all years, the growing season changes by +0.8 days per decade at this station.

Frost dates and growing season at Vandalia
Measure	Median, all years	Earliest period (1912 to 1982)	Recent period (1990 to 2025)	Recent against earliest	Fitted trend
Last spring frost	16 April	16 April	14 April	2 days earlier	-0.4 days per decade
First autumn frost	19 October	19 October	21 October	2 days later	+0.4 days per decade
Growing days	188 days	188 days	189 days	1 day more	+0.8 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

70 years, 1912 to 2025

A day with at least 68.1 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 138.4 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Vandalia: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	68.1 mm (2.7 in)
5 years	88.3 mm (3.5 in)
10 years	101.1 mm (4.0 in)
25 years	116.6 mm (4.6 in)
50 years	127.7 mm (5.0 in)
100 years	138.4 mm (5.4 in)	Longer than the 70 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 70 years of values from 1912 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 141.7 mm (5.6 in) in 1991; 129.8 mm (5.1 in) in 1974; 119.6 mm (4.7 in) in 1965.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Vandalia, at 2007. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 2007 ran 0.2 C (0.4 F) lower than in the years before (likely change).

Suspected changes in the annual mean temperature at Vandalia, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
2007	-0.2	-0.4	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, Vandalia had a mean temperature of 11.9 C (53.5 F) and 962.9 mm (37.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Windsor (United States, 249 km away), Dayton Mcd (United States, 628 km away) and Edwardsport Pwr Plt (United States, 372 km away).

Climate twins of Vandalia: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Windsor	United States	249 km (155 mi)	11.8 C (53.2 F)	971.9 mm (38.3 in)	0.50
Dayton Mcd	United States	628 km (390 mi)	11.9 C (53.3 F)	987.9 mm (38.9 in)	0.51
Edwardsport Pwr Plt	United States	372 km (231 mi)	11.8 C (53.2 F)	1,015.8 mm (40.0 in)	0.53

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Vandalia standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Vandalia threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).