Sula 2 SE (Sula Rs) Weather Records (USC00247964)

Record envelope, standing records and threshold days for Sula 2 SE (Sula Rs) (USC00247964), Montana, United States, with 72 years of record.

Key Facts for Sula 2 SE (Sula Rs)

Sula 2 SE (Sula Rs) (USC00247964) is a weather station in Montana, United States at 45.82 latitude and -113.96 longitude, 1,393 m (4,570 ft) above sea level.
The station reports from 1955 to 2026, 72 years of record.
1,464 records set at Sula 2 SE (Sula Rs) still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Sula 2 SE (Sula Rs) set a daily record snowfall of 10.2 cm (4.0 in) on 6 January 2026.

About the Station

Location: Montana, United States, 45.82 latitude, -113.96 longitude.
Elevation: 1,393 m (4,570 ft).
Period of record: 1955 to 2026, 72 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Sula 2 SE (Sula Rs). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Sula 2 SE (Sula Rs), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	14.4 C (57.9 F)	-41.7 C (-43.1 F)	n/a	n/a
Feb	19.4 C (66.9 F)	-43.3 C (-45.9 F)	n/a	n/a
Mar	23.3 C (73.9 F)	-31.1 C (-24.0 F)	n/a	n/a
Apr	28.3 C (82.9 F)	-16.1 C (3.0 F)	n/a	n/a
May	32.2 C (90.0 F)	-12.2 C (10.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	-6.7 C (19.9 F)	n/a	n/a
Jul	36.7 C (98.1 F)	-6.1 C (21.0 F)	n/a	n/a
Aug	37.8 C (100.0 F)	-10.0 C (14.0 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-12.2 C (10.0 F)	n/a	n/a
Oct	31.7 C (89.1 F)	-23.3 C (-9.9 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-34.4 C (-29.9 F)	n/a	n/a
Dec	15.0 C (59.0 F)	-42.8 C (-45.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Sula 2 SE (Sula Rs) still stand. 1969 holds the most, with 50.

Standing records at Sula 2 SE (Sula Rs) by the year they were set
Year set	Standing records
1955	1
1956	28
1957	31
1958	24
1959	27
1960	33
1961	26
1962	36
1963	21
1964	21
1965	29
1966	48
1967	21
1968	43
1969	50
1970	28
1971	37
1972	36
1973	36
1974	26
1975	27
1976	19
1977	22
1978	35
1979	26
1980	31
1981	18
1982	18
1983	36
1984	22
1985	31
1986	31
1987	38
1988	28
1989	25
1990	26
1991	25
1992	30
1993	26
1994	24
1995	25
1996	20
1997	21
1998	15
1999	19
2000	22
2001	17
2002	32
2003	30
2004	12
2005	15
2006	19
2007	15
2008	14
2009	20
2010	16
2011	11
2012	1

All-Time Record Progression

2 new records

2 all-time records were set at Sula 2 SE (Sula Rs) between 4 February 1989 and 16 August 2003. Each dot is a new record.

When Sula 2 SE (Sula Rs) set new all-time records
Date	Kind	Detail
1989-02-04	Record low minimum temperature	Record low minimum temperature -43.3 C (-45.9 F)
2003-08-16	Record high minimum temperature	Record high minimum temperature 18.9 C (66.0 F)

Wettest Day of Each Month

May: 40.1 mm (1.6 in)

The wettest day on record for each calendar month at Sula 2 SE (Sula Rs). The most was 40.1 mm (1.6 in) on 17 May 1977.

Record daily precipitation for each month at Sula 2 SE (Sula Rs)
Month	Record daily precipitation (mm)	Date
Jan	20.8 mm (0.8 in)	1 January 1997
Feb	18.0 mm (0.7 in)	1 February 1995
Mar	19.8 mm (0.8 in)	18 March 1987
Apr	23.9 mm (0.9 in)	6 April 2006
May	40.1 mm (1.6 in)	17 May 1977
Jun	34.3 mm (1.4 in)	24 June 1958
Jul	32.5 mm (1.3 in)	29 July 1984
Aug	33.3 mm (1.3 in)	14 August 1978
Sep	34.3 mm (1.4 in)	18 September 1957
Oct	26.2 mm (1.0 in)	21 October 1975
Nov	29.0 mm (1.1 in)	20 November 1962
Dec	30.5 mm (1.2 in)	22 December 1964

Period of Record Coverage

1955 to 2012

58 years of record at Sula 2 SE (Sula Rs), 1955 to 2012. 11 years have data for under 90 percent of days and are left out of rankings: 1955, 1967, 1975, 2000, 2002, 2003, 2004, 2005 and others.

Days with data per year at Sula 2 SE (Sula Rs)
Year	Days with data	Share of year	Complete
1955	29	8%	No
1956	365	100%	Yes
1957	363	99%	Yes
1958	361	99%	Yes
1959	363	99%	Yes
1960	359	98%	Yes
1961	362	99%	Yes
1962	359	98%	Yes
1963	363	99%	Yes
1964	364	99%	Yes
1965	363	99%	Yes
1966	363	99%	Yes
1967	249	68%	No
1968	353	96%	Yes
1969	364	100%	Yes
1970	363	99%	Yes
1971	361	99%	Yes
1972	364	99%	Yes
1973	364	100%	Yes
1974	362	99%	Yes
1975	328	90%	No
1976	358	98%	Yes
1977	352	96%	Yes
1978	362	99%	Yes
1979	363	99%	Yes
1980	364	99%	Yes
1981	362	99%	Yes
1982	337	92%	Yes
1983	340	93%	Yes
1984	339	93%	Yes
1985	334	92%	Yes
1986	342	94%	Yes
1987	348	95%	Yes
1988	338	92%	Yes
1989	356	98%	Yes
1990	364	100%	Yes
1991	357	98%	Yes
1992	348	95%	Yes
1993	352	96%	Yes
1994	344	94%	Yes
1995	342	94%	Yes
1996	333	91%	Yes
1997	339	93%	Yes
1998	333	91%	Yes
1999	333	91%	Yes
2000	328	90%	No
2001	329	90%	Yes
2002	320	88%	No
2003	322	88%	No
2004	326	89%	No
2005	317	87%	No
2006	313	86%	No
2007	316	87%	No
2008	338	92%	Yes
2009	363	99%	Yes
2010	357	98%	Yes
2011	353	97%	Yes
2012	20	5%	No

Latest Records

Latest records at Sula 2 SE (Sula Rs)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 January 2026	Sula 2 SE (Sula Rs), US	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	19 years	17 of 100 (Routine)
14 November 2025	Sula 2 SE (Sula Rs), US	daily rain	11.2 mm (0.4 in)	5.9 mm (0.23 in)	44 years	20 of 100 (Routine)
5 August 2025	Sula 2 SE (Sula Rs), US	daily rain	13.7 mm (0.5 in)	3.8 mm (0.15 in)	28 years	20 of 100 (Routine)
18 February 2025	Sula 2 SE (Sula Rs), US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	66 years	42 of 100 (Notable)
11 February 2025	Sula 2 SE (Sula Rs), US	daily snowfall	14.0 cm (5.5 in)	8.9 cm (3.5 in)	66 years	55 of 100 (Notable)
5 February 2025	Sula 2 SE (Sula Rs), US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	1 year	1 of 100 (Routine)
3 February 2025	Sula 2 SE (Sula Rs), US	daily snowfall	15.2 cm (6.0 in)	12.4 cm (4.9 in)	28 years	55 of 100 (Notable)
5 February 2024	Sula 2 SE (Sula Rs), US	daily snowfall	5.1 cm (2.0 in)	2.6 cm (1.0 in)	65 years	33 of 100 (Routine)
4 April 2023	Sula 2 SE (Sula Rs), US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	66 years	38 of 100 (Notable)
4 April 2023	Sula 2 SE (Sula Rs), US	daily snow depth	7.6 cm (3.0 in)	5.1 cm (2.0 in)	25 years	20 of 100 (Routine)
3 April 2023	Sula 2 SE (Sula Rs), US	daily snowfall	5.3 cm (2.1 in)	2.8 cm (1.1 in)	40 years	24 of 100 (Routine)
3 April 2023	Sula 2 SE (Sula Rs), US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	57 years	5 of 100 (Routine)
30 March 2023	Sula 2 SE (Sula Rs), US	daily snowfall	12.4 cm (4.9 in)	7.3 cm (2.9 in)	62 years	41 of 100 (Notable)
30 March 2023	Sula 2 SE (Sula Rs), US	daily rain (Tie)	9.9 mm (0.39 in)	tie	12 years	2 of 100 (Routine)
18 January 2012	Sula 2 SE (Sula Rs), US	daily snowfall	8.9 cm (3.5 in)	3.8 cm (1.5 in)	53 years	29 of 100 (Routine)
4 January 2012	Sula 2 SE (Sula Rs), US	daily high max	11.1 C (52.0 F)	1.7 C (3.1 F)	22 years	13 of 100 (Routine)
31 December 2011	Sula 2 SE (Sula Rs), US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	16 years	2 of 100 (Routine)
4 December 2011	Sula 2 SE (Sula Rs), US	daily snowfall (Tie)	10.2 cm (4.0 in)	tie	54 years	5 of 100 (Routine)
25 November 2011	Sula 2 SE (Sula Rs), US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	49 years	4 of 100 (Routine)
23 November 2011	Sula 2 SE (Sula Rs), US	daily high min	2.8 C (37.0 F)	0.6 C (1.1 F)	9 years	7 of 100 (Routine)

Climate Trend

51 complete years, 1956 to 2011

One stripe for each of 51 complete years at Sula 2 SE (Sula Rs), 1956 to 2011. Blue stripes are years cooler than the station's own mean of 5.3 C (41.5 F); red stripes are warmer. The coolest year was 1985, at 3.3 C (37.9 F), and the warmest was 2006, at 6.6 C (43.9 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Sula 2 SE (Sula Rs) as warming stripes, 1956 to 2011
Year	Annual mean temperature	Difference from the station mean
1956	5.2 C	-0.07 C
1957	4.4 C	-0.89 C
1958	5.8 C	+0.48 C
1959	4.9 C	-0.39 C
1960	4.5 C	-0.74 C
1961	5.8 C	+0.53 C
1962	4.8 C	-0.47 C
1963	5.4 C	+0.17 C
1964	4.3 C	-0.96 C
1965	4.5 C	-0.76 C
1966	5.1 C	-0.21 C
1969	4.8 C	-0.46 C
1970	5.4 C	+0.08 C
1971	4.9 C	-0.38 C
1972	4.7 C	-0.54 C
1973	5.0 C	-0.27 C
1976	5.6 C	+0.37 C
1977	5.1 C	-0.19 C
1978	5.0 C	-0.24 C
1979	5.0 C	-0.32 C
1980	5.6 C	+0.34 C
1982	4.7 C	-0.61 C
1983	5.5 C	+0.23 C
1984	4.7 C	-0.58 C
1985	3.3 C	-1.98 C
1986	6.2 C	+0.92 C
1987	6.0 C	+0.77 C
1988	5.6 C	+0.37 C
1989	5.3 C	+0.02 C
1990	5.9 C	+0.64 C
1991	5.9 C	+0.60 C
1992	6.2 C	+0.97 C
1993	4.0 C	-1.26 C
1994	5.6 C	+0.31 C
1995	5.4 C	+0.09 C
1996	4.7 C	-0.61 C
1997	4.6 C	-0.65 C
1998	5.8 C	+0.51 C
1999	5.5 C	+0.26 C
2000	5.6 C	+0.36 C
2001	6.1 C	+0.81 C
2002	5.1 C	-0.15 C
2003	6.2 C	+0.94 C
2004	6.1 C	+0.87 C
2005	5.6 C	+0.33 C
2006	6.6 C	+1.34 C
2007	6.4 C	+1.14 C
2008	5.0 C	-0.29 C
2009	4.9 C	-0.36 C
2010	5.5 C	+0.25 C
2011	4.9 C	-0.37 C

The annual mean temperature here has risen by 0.14 C (0.04 to 0.25) per decade over 1956 to 2011. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 51 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Sula 2 SE (Sula Rs)
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.14 C (0.04 to 0.25) per decade	0.3 F (0.1 to 0.4) per decade	1956 to 2011	51	Rise
Mean daily maximum	-0.01 C (-0.14 to 0.13) per decade	-0.01 F (-0.26 to 0.24) per decade	1956 to 2011	51	Not clearly different from zero
Mean daily minimum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.8) per decade	1956 to 2011	51	Rise

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

1955 to 2026

Yearly extremes at Sula 2 SE (Sula Rs): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	1961	34.4 C (93.9 F)	58
Coldest night (TNn)	-43.3 C (-45.9 F)	1989	-32.8 C (-27.0 F)	58
Wettest day (Rx1day)	40.1 mm (1.6 in)	1977	21.3 mm (0.8 in)	63
Wettest five days (Rx5day)	93.3 mm (3.7 in)	1964	40.1 mm (1.6 in)	59
Longest dry spell (CDD)	64 days	1969	24 days	63

Hottest day (TXx)

The hottest day of the year at Sula 2 SE (Sula Rs), 1955 to 2026. The record is 37.8 C (100.0 F) in 1961, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at Sula 2 SE (Sula Rs) by year
Year	Hottest day (TXx)
1955	8.9 C (48.0 F)
1956	35.6 C (96.1 F)
1957	33.9 C (93.0 F)
1958	34.4 C (93.9 F)
1959	36.7 C (98.1 F)
1960	36.7 C (98.1 F)
1961	37.8 C (100.0 F)
1962	33.9 C (93.0 F)
1963	34.4 C (93.9 F)
1964	34.4 C (93.9 F)
1965	34.4 C (93.9 F)
1966	37.2 C (99.0 F)
1967	33.9 C (93.0 F)
1968	34.4 C (93.9 F)
1969	35.6 C (96.1 F)
1970	35.0 C (95.0 F)
1971	35.6 C (96.1 F)
1972	35.6 C (96.1 F)
1973	36.1 C (97.0 F)
1974	35.0 C (95.0 F)
1975	35.6 C (96.1 F)
1976	34.4 C (93.9 F)
1977	33.9 C (93.0 F)
1978	33.9 C (93.0 F)
1979	35.0 C (95.0 F)
1980	35.6 C (96.1 F)
1981	36.1 C (97.0 F)
1982	33.3 C (91.9 F)
1983	36.7 C (98.1 F)
1984	34.4 C (93.9 F)
1985	35.0 C (95.0 F)
1986	33.9 C (93.0 F)
1987	34.4 C (93.9 F)
1988	33.9 C (93.0 F)
1989	35.0 C (95.0 F)
1990	36.1 C (97.0 F)
1991	36.1 C (97.0 F)
1992	36.7 C (98.1 F)
1993	31.1 C (88.0 F)
1994	33.3 C (91.9 F)
1995	32.2 C (90.0 F)
1996	33.9 C (93.0 F)
1997	32.8 C (91.0 F)
1998	35.6 C (96.1 F)
1999	35.0 C (95.0 F)
2000	36.1 C (97.0 F)
2001	34.4 C (93.9 F)
2002	36.7 C (98.1 F)
2003	36.1 C (97.0 F)
2004	34.4 C (93.9 F)
2005	34.4 C (93.9 F)
2006	35.0 C (95.0 F)
2007	36.1 C (97.0 F)
2008	33.9 C (93.0 F)
2009	34.4 C (93.9 F)
2010	33.3 C (91.9 F)
2011	33.9 C (93.0 F)
2012	11.1 C (52.0 F)
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Sula 2 SE (Sula Rs), 1955 to 2026. The record is -43.3 C (-45.9 F) in 1989, marked on the chart; the median year is -32.8 C (-27.0 F).

Coldest night (TNn) at Sula 2 SE (Sula Rs) by year
Year	Coldest night (TNn)
1955	-26.7 C (-16.1 F)
1956	-35.6 C (-32.1 F)
1957	-41.7 C (-43.1 F)
1958	-26.1 C (-15.0 F)
1959	-34.4 C (-29.9 F)
1960	-36.1 C (-33.0 F)
1961	-32.2 C (-26.0 F)
1962	-40.6 C (-41.1 F)
1963	-38.9 C (-38.0 F)
1964	-40.0 C (-40.0 F)
1965	-27.8 C (-18.0 F)
1966	-31.1 C (-24.0 F)
1967	-28.9 C (-20.0 F)
1968	-31.1 C (-24.0 F)
1969	-36.7 C (-34.1 F)
1970	-31.7 C (-25.1 F)
1971	-35.0 C (-31.0 F)
1972	-40.0 C (-40.0 F)
1973	-35.6 C (-32.1 F)
1974	-37.8 C (-36.0 F)
1975	-31.7 C (-25.1 F)
1976	-29.4 C (-20.9 F)
1977	-35.0 C (-31.0 F)
1978	-41.7 C (-43.1 F)
1979	-40.0 C (-40.0 F)
1980	-38.9 C (-38.0 F)
1981	-32.8 C (-27.0 F)
1982	-38.3 C (-36.9 F)
1983	-42.8 C (-45.0 F)
1984	-34.4 C (-29.9 F)
1985	-40.0 C (-40.0 F)
1986	-26.7 C (-16.1 F)
1987	-31.1 C (-24.0 F)
1988	-33.3 C (-27.9 F)
1989	-43.3 C (-45.9 F)
1990	-41.1 C (-42.0 F)
1991	-31.7 C (-25.1 F)
1992	-31.7 C (-25.1 F)
1993	-35.6 C (-32.1 F)
1994	-24.4 C (-11.9 F)
1995	-27.8 C (-18.0 F)
1996	-37.8 C (-36.0 F)
1997	-38.9 C (-38.0 F)
1998	-33.9 C (-29.0 F)
1999	-25.0 C (-13.0 F)
2000	-26.1 C (-15.0 F)
2001	-27.2 C (-17.0 F)
2002	-26.1 C (-15.0 F)
2003	-33.9 C (-29.0 F)
2004	-21.7 C (-7.1 F)
2005	-32.8 C (-27.0 F)
2006	-28.9 C (-20.0 F)
2007	-22.2 C (-8.0 F)
2008	-30.0 C (-22.0 F)
2009	-32.8 C (-27.0 F)
2010	-31.7 C (-25.1 F)
2011	-32.2 C (-26.0 F)
2012	-17.8 C (0.0 F)
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Sula 2 SE (Sula Rs), 1955 to 2026. The record is 40.1 mm (1.6 in) in 1977, marked on the chart; the median year is 21.3 mm (0.8 in).

Wettest day (Rx1day) at Sula 2 SE (Sula Rs) by year
Year	Wettest day (Rx1day)
1955	21.1 mm (0.8 in)
1956	25.4 mm (1.0 in)
1957	34.3 mm (1.4 in)
1958	34.3 mm (1.4 in)
1959	15.7 mm (0.6 in)
1960	16.3 mm (0.6 in)
1961	16.0 mm (0.6 in)
1962	29.0 mm (1.1 in)
1963	21.6 mm (0.9 in)
1964	32.0 mm (1.3 in)
1965	19.6 mm (0.8 in)
1966	26.7 mm (1.1 in)
1967	22.4 mm (0.9 in)
1968	23.1 mm (0.9 in)
1969	33.8 mm (1.3 in)
1970	29.2 mm (1.1 in)
1971	11.7 mm (0.5 in)
1972	15.5 mm (0.6 in)
1973	23.6 mm (0.9 in)
1974	19.8 mm (0.8 in)
1975	26.2 mm (1.0 in)
1976	19.1 mm (0.8 in)
1977	40.1 mm (1.6 in)
1978	33.3 mm (1.3 in)
1979	17.5 mm (0.7 in)
1980	29.2 mm (1.1 in)
1981	19.6 mm (0.8 in)
1982	22.9 mm (0.9 in)
1983	28.7 mm (1.1 in)
1984	32.5 mm (1.3 in)
1985	23.4 mm (0.9 in)
1986	19.1 mm (0.8 in)
1987	19.8 mm (0.8 in)
1988	35.1 mm (1.4 in)
1989	29.7 mm (1.2 in)
1990	21.1 mm (0.8 in)
1991	21.3 mm (0.8 in)
1992	14.5 mm (0.6 in)
1993	20.3 mm (0.8 in)
1994	20.8 mm (0.8 in)
1995	20.3 mm (0.8 in)
1996	21.3 mm (0.8 in)
1997	21.3 mm (0.8 in)
1998	20.3 mm (0.8 in)
1999	20.3 mm (0.8 in)
2000	14.0 mm (0.6 in)
2001	27.7 mm (1.1 in)
2002	35.1 mm (1.4 in)
2003	19.8 mm (0.8 in)
2004	23.1 mm (0.9 in)
2005	30.5 mm (1.2 in)
2006	23.9 mm (0.9 in)
2007	31.2 mm (1.2 in)
2008	26.7 mm (1.1 in)
2009	26.9 mm (1.1 in)
2010	19.8 mm (0.8 in)
2011	23.1 mm (0.9 in)
2012	0.8 mm (0.03 in)
2022	8.1 mm (0.32 in)
2023	9.9 mm (0.39 in)
2024	6.6 mm (0.26 in)
2025	13.7 mm (0.5 in)
2026	14.0 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sula 2 SE (Sula Rs), 1955 to 2026. The record is 93.3 mm (3.7 in) in 1964, marked on the chart; the median year is 40.1 mm (1.6 in).

Wettest five days (Rx5day) at Sula 2 SE (Sula Rs) by year
Year	Wettest five days (Rx5day)
1955	52.3 mm (2.1 in)
1956	35.1 mm (1.4 in)
1957	49.7 mm (2.0 in)
1958	37.1 mm (1.5 in)
1959	41.9 mm (1.6 in)
1960	34.6 mm (1.4 in)
1961	24.4 mm (1.0 in)
1962	46.0 mm (1.8 in)
1963	47.0 mm (1.9 in)
1964	93.3 mm (3.7 in)
1965	42.1 mm (1.7 in)
1966	43.6 mm (1.7 in)
1967	30.8 mm (1.2 in)
1968	32.6 mm (1.3 in)
1969	35.6 mm (1.4 in)
1970	62.3 mm (2.5 in)
1971	33.2 mm (1.3 in)
1972	35.6 mm (1.4 in)
1973	43.7 mm (1.7 in)
1974	32.2 mm (1.3 in)
1975	51.2 mm (2.0 in)
1976	31.4 mm (1.2 in)
1977	51.6 mm (2.0 in)
1978	48.8 mm (1.9 in)
1979	37.1 mm (1.5 in)
1980	65.4 mm (2.6 in)
1981	44.7 mm (1.8 in)
1982	39.9 mm (1.6 in)
1983	54.1 mm (2.1 in)
1984	42.4 mm (1.7 in)
1985	48.0 mm (1.9 in)
1986	32.0 mm (1.3 in)
1987	28.9 mm (1.1 in)
1988	54.7 mm (2.2 in)
1989	39.7 mm (1.6 in)
1990	37.2 mm (1.5 in)
1991	37.4 mm (1.5 in)
1992	40.1 mm (1.6 in)
1993	30.4 mm (1.2 in)
1994	41.5 mm (1.6 in)
1995	46.5 mm (1.8 in)
1996	43.0 mm (1.7 in)
1997	38.1 mm (1.5 in)
1998	39.0 mm (1.5 in)
1999	35.5 mm (1.4 in)
2000	33.5 mm (1.3 in)
2001	45.5 mm (1.8 in)
2002	46.6 mm (1.8 in)
2003	34.3 mm (1.4 in)
2004	34.7 mm (1.4 in)
2005	40.4 mm (1.6 in)
2006	38.4 mm (1.5 in)
2007	52.6 mm (2.1 in)
2008	39.8 mm (1.6 in)
2009	43.7 mm (1.7 in)
2010	40.9 mm (1.6 in)
2011	43.0 mm (1.7 in)
2012	4.6 mm (0.18 in)
2022	9.7 mm (0.38 in)
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Sula 2 SE (Sula Rs), 1955 to 2026. The record is 64 days in 1969, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Sula 2 SE (Sula Rs) by year
Year	Longest dry spell (CDD)
1955	5 days
1956	15 days
1957	17 days
1958	12 days
1959	21 days
1960	25 days
1961	29 days
1962	20 days
1963	23 days
1964	42 days
1965	22 days
1966	20 days
1967	31 days
1968	23 days
1969	64 days
1970	29 days
1971	24 days
1972	23 days
1973	22 days
1974	31 days
1975	19 days
1976	29 days
1977	43 days
1978	19 days
1979	44 days
1980	20 days
1981	23 days
1982	15 days
1983	20 days
1984	26 days
1985	37 days
1986	25 days
1987	34 days
1988	31 days
1989	22 days
1990	22 days
1991	27 days
1992	23 days
1993	18 days
1994	27 days
1995	25 days
1996	22 days
1997	11 days
1998	38 days
1999	35 days
2000	35 days
2001	30 days
2002	41 days
2003	24 days
2004	27 days
2005	46 days
2006	31 days
2007	29 days
2008	20 days
2009	26 days
2010	36 days
2011	21 days
2012	16 days
2022	24 days
2023	3 days
2024	1 day
2025	1 day
2026	1 day

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

51 years with a frost

Across 51 years with a frost, the median last spring frost at Sula 2 SE (Sula Rs) falls on 24 June and the median first autumn frost on 12 July, which leaves a median of 20 days between them.

Fitted over all years, the growing season changes by +8.8 days per decade at this station.

Frost dates and growing season at Sula 2 SE (Sula Rs)
Measure	Median, all years	Earliest period	Recent period (1982 to 2011)	Recent against earliest	Fitted trend
Last spring frost	24 June	n/a	23 June	n/a	-1.4 days per decade
First autumn frost	12 July	n/a	28 July	n/a	+7.4 days per decade
Growing days	20 days	n/a	34 days	n/a	+8.8 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

55 years, 1956 to 2011

A day with at least 23.4 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 42.4 mm (1.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Sula 2 SE (Sula Rs): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	23.4 mm (0.9 in)
5 years	29.3 mm (1.2 in)
10 years	32.9 mm (1.3 in)
25 years	37.0 mm (1.5 in)
50 years	39.8 mm (1.6 in)
100 years	42.4 mm (1.7 in)	Longer than the 55 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, 55 years of values from 1956 to 2011.

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: 40.1 mm (1.6 in) in 1977; 35.1 mm (1.4 in) in 1988; 35.1 mm (1.4 in) in 2002.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Sula 2 SE (Sula Rs) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sula 2 SE (Sula Rs) 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).