Muddy Gap Weather Records (USC00486595)

Record envelope, standing records and threshold days for Muddy Gap (USC00486595), Wyoming, United States, with 60 years of record.

Key Facts for Muddy Gap

Muddy Gap (USC00486595) is a weather station in Wyoming, United States at 42.36 latitude and -107.44 longitude, 1,904 m (6,248 ft) above sea level.
The station reports from 1949 to 2008, 60 years of record.
1,464 records set at Muddy Gap still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Muddy Gap set a daily record snow depth of 2.5 cm (1.0 in) on 3 December 2007.

About the Station

Location: Wyoming, United States, 42.36 latitude, -107.44 longitude.
Elevation: 1,904 m (6,248 ft).
Period of record: 1949 to 2008, 60 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 Muddy Gap. 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 Muddy Gap, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.8 C (55.0 F)	-36.7 C (-34.1 F)	n/a	n/a
Feb	15.6 C (60.1 F)	-33.3 C (-27.9 F)	n/a	n/a
Mar	22.8 C (73.0 F)	-30.6 C (-23.1 F)	n/a	n/a
Apr	26.1 C (79.0 F)	-21.7 C (-7.1 F)	n/a	n/a
May	33.9 C (93.0 F)	-10.6 C (12.9 F)	n/a	n/a
Jun	36.7 C (98.1 F)	-3.9 C (25.0 F)	n/a	n/a
Jul	37.8 C (100.0 F)	-1.1 C (30.0 F)	n/a	n/a
Aug	38.9 C (102.0 F)	-0.6 C (30.9 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-12.2 C (10.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-22.2 C (-8.0 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-27.2 C (-17.0 F)	n/a	n/a
Dec	14.4 C (57.9 F)	-40.0 C (-40.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Muddy Gap still stand. 1989 holds the most, with 44.

Standing records at Muddy Gap by the year they were set
Year set	Standing records
1950	35
1951	31
1952	32
1953	38
1954	30
1955	25
1956	23
1957	16
1958	20
1959	18
1960	34
1961	17
1962	39
1963	24
1964	22
1965	32
1966	19
1967	23
1968	15
1969	42
1970	17
1971	30
1972	24
1973	22
1974	17
1975	32
1976	11
1978	4
1979	22
1980	27
1981	36
1982	22
1983	27
1984	26
1985	36
1986	38
1987	32
1988	30
1989	44
1990	43
1991	21
1992	20
1993	16
1994	13
1995	26
1996	31
1997	16
1998	17
1999	27
2000	35
2001	29
2002	14
2003	36
2004	7
2005	20
2006	29
2007	32

All-Time Record Progression

13 new records

13 all-time records were set at Muddy Gap between 21 December 1983 and 12 August 2003. Each dot is a new record.

When Muddy Gap set new all-time records
Date	Kind	Detail
1983-12-21	Record low maximum temperature	Record low maximum temperature -27.8 C (-18.0 F)
1983-12-22	Record low minimum temperature	Record low minimum temperature -38.3 C (-36.9 F)
1983-12-23	Record low minimum temperature	Record low minimum temperature -40.0 C (-40.0 F)
1989-02-03	Record low maximum temperature	Record low maximum temperature -31.1 C (-24.0 F)
1991-05-15	Record daily precipitation	Record daily precipitation 68.6 mm (2.7 in)
1992-11-23	Record snow depth	Record snow depth 53.3 cm (21.0 in)
1992-11-29	Record snow depth	Record snow depth 55.9 cm (22.0 in)
1998-03-18	Record daily snowfall	Record daily snowfall 61.0 cm (24.0 in)
1998-03-18	Record snow depth	Record snow depth 61.0 cm (24.0 in)
1999-04-02	Record snow depth	Record snow depth 63.5 cm (25.0 in)
1999-04-03	Record snow depth	Record snow depth 66.0 cm (26.0 in)
2003-07-19	Record high minimum temperature	Record high minimum temperature 22.8 C (73.0 F)
2003-08-12	Record high maximum temperature	Record high maximum temperature 38.9 C (102.0 F)

Wettest Day of Each Month

May: 68.6 mm (2.7 in)

The wettest day on record for each calendar month at Muddy Gap. The most was 68.6 mm (2.7 in) on 15 May 1991.

Record daily precipitation for each month at Muddy Gap
Month	Record daily precipitation (mm)	Date
Jan	25.4 mm (1.0 in)	31 January 2007
Feb	22.4 mm (0.9 in)	5 February 1974
Mar	52.1 mm (2.1 in)	18 March 1998
Apr	38.6 mm (1.5 in)	20 April 1974
May	68.6 mm (2.7 in)	15 May 1991
Jun	50.3 mm (2.0 in)	26 June 1954
Jul	52.6 mm (2.1 in)	19 July 1957
Aug	34.3 mm (1.4 in)	15 August 1953
Sep	43.2 mm (1.7 in)	14 September 1982
Oct	38.1 mm (1.5 in)	22 October 1995
Nov	33.3 mm (1.3 in)	27 November 1983
Dec	26.7 mm (1.1 in)	25 December 1949

Period of Record Coverage

1950 to 2008

58 years of record at Muddy Gap, 1950 to 2008. 20 years have data for under 90 percent of days and are left out of rankings: 1950, 1973, 1976, 1978, 1979, 1980, 1981, 1984 and others.

Days with data per year at Muddy Gap
Year	Days with data	Share of year	Complete
1950	293	80%	No
1951	364	100%	Yes
1952	365	100%	Yes
1953	363	99%	Yes
1954	362	99%	Yes
1955	362	99%	Yes
1956	354	97%	Yes
1957	363	99%	Yes
1958	359	98%	Yes
1959	359	98%	Yes
1960	359	98%	Yes
1961	363	99%	Yes
1962	363	99%	Yes
1963	347	95%	Yes
1964	364	99%	Yes
1965	359	98%	Yes
1966	362	99%	Yes
1967	334	92%	Yes
1968	363	99%	Yes
1969	360	99%	Yes
1970	356	98%	Yes
1971	360	99%	Yes
1972	361	99%	Yes
1973	322	88%	No
1974	351	96%	Yes
1975	359	98%	Yes
1976	176	48%	No
1978	58	16%	No
1979	192	53%	No
1980	251	69%	No
1981	325	89%	No
1982	340	93%	Yes
1983	336	92%	Yes
1984	324	89%	No
1985	350	96%	Yes
1986	306	84%	No
1987	345	95%	Yes
1988	310	85%	No
1989	342	94%	Yes
1990	344	94%	Yes
1991	341	93%	Yes
1992	330	90%	Yes
1993	332	91%	Yes
1994	297	81%	No
1995	277	76%	No
1996	311	85%	No
1997	301	82%	No
1998	307	84%	No
1999	337	92%	Yes
2000	345	94%	Yes
2001	338	93%	Yes
2002	339	93%	Yes
2003	335	92%	Yes
2004	175	48%	No
2005	224	61%	No
2006	300	82%	No
2007	260	71%	No
2008	11	3%	No

Latest Records

Latest records at Muddy Gap
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 December 2007	Muddy Gap, US	daily snow depth	2.5 cm (1.0 in)	2.5 cm (1.0 in)	56 years	20 of 100 (Routine)
19 November 2007	Muddy Gap, US	daily high max	14.4 C (57.9 F)	0.5 C (0.9 F)	10 years	8 of 100 (Routine)
18 November 2007	Muddy Gap, US	daily high min	4.4 C (39.9 F)	1.6 C (2.9 F)	12 years	10 of 100 (Routine)
18 November 2007	Muddy Gap, US	monthly high max (Tie)	20.0 C (68.0 F)	tie	29 years	5 of 100 (Routine)
9 November 2007	Muddy Gap, US	monthly high min	7.8 C (46.0 F)	0.6 C (1.1 F)	1 year	15 of 100 (Routine)
7 November 2007	Muddy Gap, US	daily high min	5.6 C (42.1 F)	1.2 C (2.2 F)	12 years	9 of 100 (Routine)
21 October 2007	Muddy Gap, US	daily snowfall	1.3 cm (0.5 in)	1.3 cm (0.5 in)	56 years	20 of 100 (Routine)
20 October 2007	Muddy Gap, US	daily rain	35.6 mm (1.4 in)	28.0 mm (1.1 in)	49 years	59 of 100 (Notable)
20 October 2007	Muddy Gap, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	56 years	28 of 100 (Routine)
14 September 2007	Muddy Gap, US	daily high min	14.4 C (57.9 F)	0.5 C (0.9 F)	52 years	21 of 100 (Routine)
9 September 2007	Muddy Gap, US	daily low max	16.1 C (61.0 F)	1.7 C (3.1 F)	0 years	8 of 100 (Routine)
3 September 2007	Muddy Gap, US	daily high min	17.2 C (63.0 F)	1.1 C (2.0 F)	56 years	24 of 100 (Routine)
31 August 2007	Muddy Gap, US	daily high min (Tie)	16.7 C (62.1 F)	tie	52 years	5 of 100 (Routine)
14 August 2007	Muddy Gap, US	daily high min (Tie)	16.7 C (62.1 F)	tie	44 years	4 of 100 (Routine)
12 August 2007	Muddy Gap, US	daily high min	20.0 C (68.0 F)	2.2 C (4.0 F)	4 years	12 of 100 (Routine)
26 July 2007	Muddy Gap, US	daily low min	2.8 C (37.0 F)	2.8 C (5.0 F)	36 years	22 of 100 (Routine)
15 July 2007	Muddy Gap, US	daily low min	2.8 C (37.0 F)	1.1 C (2.0 F)	56 years	25 of 100 (Routine)
14 July 2007	Muddy Gap, US	daily low min	1.7 C (35.1 F)	1.6 C (2.9 F)	54 years	25 of 100 (Routine)
13 July 2007	Muddy Gap, US	daily low min	1.7 C (35.1 F)	1.6 C (2.9 F)	54 years	25 of 100 (Routine)
22 June 2007	Muddy Gap, US	daily high max (Tie)	33.9 C (93.0 F)	tie	18 years	2 of 100 (Routine)

Climate Trend

37 complete years, 1951 to 2003

One stripe for each of 37 complete years at Muddy Gap, 1951 to 2003. Blue stripes are years cooler than the station's own mean of 6.8 C (44.2 F); red stripes are warmer. The coolest year was 1951, at 4.9 C (40.8 F), and the warmest was 2003, at 8.4 C (47.2 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Muddy Gap as warming stripes, 1951 to 2003
Year	Annual mean temperature	Difference from the station mean
1951	4.9 C	-1.92 C
1952	6.3 C	-0.48 C
1953	7.6 C	+0.81 C
1954	8.3 C	+1.53 C
1955	6.2 C	-0.59 C
1956	7.1 C	+0.29 C
1957	6.4 C	-0.43 C
1958	7.4 C	+0.59 C
1959	6.7 C	-0.07 C
1960	6.7 C	-0.09 C
1961	6.6 C	-0.20 C
1962	7.1 C	+0.33 C
1963	7.6 C	+0.78 C
1964	5.7 C	-1.12 C
1965	6.4 C	-0.42 C
1966	6.8 C	+0.03 C
1968	6.4 C	-0.42 C
1969	7.4 C	+0.63 C
1970	6.7 C	-0.13 C
1971	6.1 C	-0.73 C
1972	6.0 C	-0.77 C
1974	6.5 C	-0.28 C
1975	5.7 C	-1.08 C
1982	6.4 C	-0.43 C
1983	6.7 C	-0.14 C
1984	6.0 C	-0.79 C
1985	6.0 C	-0.78 C
1987	7.3 C	+0.47 C
1988	7.6 C	+0.81 C
1989	7.1 C	+0.34 C
1990	8.0 C	+1.17 C
1991	7.0 C	+0.24 C
1992	7.6 C	+0.83 C
1993	5.8 C	-1.04 C
2000	7.8 C	+0.96 C
2002	7.2 C	+0.38 C
2003	8.4 C	+1.62 C

The fitted trend in annual mean temperature here over 1951 to 2003 is 0.14 C (-0.03 to 0.31) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.25 F (-0.05 to 0.55) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Muddy Gap
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.14 C (-0.03 to 0.31) per decade	0.25 F (-0.05 to 0.55) per decade	1951 to 2003	37	Not clearly different from zero
Mean daily maximum	0.18 C (-0.02 to 0.38) per decade	0.32 F (-0.03 to 0.68) per decade	1951 to 2003	37	Not clearly different from zero
Mean daily minimum	0.1 C (-0.1 to 0.3) per decade	0.2 F (-0.1 to 0.5) per decade	1951 to 2003	37	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

1949 to 2008

Yearly extremes at Muddy Gap: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	2003	34.4 C (93.9 F)	58
Coldest night (TNn)	-40.0 C (-40.0 F)	1983	-28.0 C (-18.5 F)	58
Wettest day (Rx1day)	68.6 mm (2.7 in)	1991	26.7 mm (1.1 in)	59
Wettest five days (Rx5day)	97.6 mm (3.8 in)	1991	41.1 mm (1.6 in)	59
Longest dry spell (CDD)	105 days	2002	39 days	59

Hottest day (TXx)

The hottest day of the year at Muddy Gap, 1949 to 2008. The record is 38.9 C (102.0 F) in 2003, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at Muddy Gap by year
Year	Hottest day (TXx)
1949	n/a
1950	31.1 C (88.0 F)
1951	33.9 C (93.0 F)
1952	32.8 C (91.0 F)
1953	33.9 C (93.0 F)
1954	35.6 C (96.1 F)
1955	32.8 C (91.0 F)
1956	32.8 C (91.0 F)
1957	31.7 C (89.1 F)
1958	32.2 C (90.0 F)
1959	34.4 C (93.9 F)
1960	33.9 C (93.0 F)
1961	33.3 C (91.9 F)
1962	32.2 C (90.0 F)
1963	33.3 C (91.9 F)
1964	33.3 C (91.9 F)
1965	32.2 C (90.0 F)
1966	32.8 C (91.0 F)
1967	32.2 C (90.0 F)
1968	37.2 C (99.0 F)
1969	33.9 C (93.0 F)
1970	33.9 C (93.0 F)
1971	37.2 C (99.0 F)
1972	33.3 C (91.9 F)
1973	33.9 C (93.0 F)
1974	34.4 C (93.9 F)
1975	37.8 C (100.0 F)
1976	31.7 C (89.1 F)
1978	23.9 C (75.0 F)
1979	36.7 C (98.1 F)
1980	34.4 C (93.9 F)
1981	35.6 C (96.1 F)
1982	35.6 C (96.1 F)
1983	36.7 C (98.1 F)
1984	34.4 C (93.9 F)
1985	35.0 C (95.0 F)
1986	35.0 C (95.0 F)
1987	33.9 C (93.0 F)
1988	36.1 C (97.0 F)
1989	37.2 C (99.0 F)
1990	35.6 C (96.1 F)
1991	33.9 C (93.0 F)
1992	33.3 C (91.9 F)
1993	32.2 C (90.0 F)
1994	35.0 C (95.0 F)
1995	34.4 C (93.9 F)
1996	35.6 C (96.1 F)
1997	35.0 C (95.0 F)
1998	36.1 C (97.0 F)
1999	34.4 C (93.9 F)
2000	35.6 C (96.1 F)
2001	36.1 C (97.0 F)
2002	36.7 C (98.1 F)
2003	38.9 C (102.0 F)
2004	35.0 C (95.0 F)
2005	37.2 C (99.0 F)
2006	36.1 C (97.0 F)
2007	35.6 C (96.1 F)
2008	3.9 C (39.0 F)

Coldest night (TNn)

The coldest night of the year at Muddy Gap, 1949 to 2008. The record is -40.0 C (-40.0 F) in 1983, marked on the chart; the median year is -28.0 C (-18.5 F).

Coldest night (TNn) at Muddy Gap by year
Year	Coldest night (TNn)
1949	n/a
1950	-26.1 C (-15.0 F)
1951	-31.7 C (-25.1 F)
1952	-26.7 C (-16.1 F)
1953	-23.3 C (-9.9 F)
1954	-27.2 C (-17.0 F)
1955	-25.6 C (-14.1 F)
1956	-27.2 C (-17.0 F)
1957	-27.2 C (-17.0 F)
1958	-22.8 C (-9.0 F)
1959	-31.7 C (-25.1 F)
1960	-31.7 C (-25.1 F)
1961	-29.4 C (-20.9 F)
1962	-31.1 C (-24.0 F)
1963	-36.7 C (-34.1 F)
1964	-32.2 C (-26.0 F)
1965	-30.6 C (-23.1 F)
1966	-24.4 C (-11.9 F)
1967	-24.4 C (-11.9 F)
1968	-26.7 C (-16.1 F)
1969	-24.4 C (-11.9 F)
1970	-25.6 C (-14.1 F)
1971	-28.3 C (-18.9 F)
1972	-31.7 C (-25.1 F)
1973	-31.7 C (-25.1 F)
1974	-33.3 C (-27.9 F)
1975	-28.9 C (-20.0 F)
1976	-30.0 C (-22.0 F)
1978	-24.4 C (-11.9 F)
1979	-31.7 C (-25.1 F)
1980	-22.2 C (-8.0 F)
1981	-27.2 C (-17.0 F)
1982	-33.3 C (-27.9 F)
1983	-40.0 C (-40.0 F)
1984	-28.3 C (-18.9 F)
1985	-32.2 C (-26.0 F)
1986	-28.3 C (-18.9 F)
1987	-30.0 C (-22.0 F)
1988	-22.2 C (-8.0 F)
1989	-33.3 C (-27.9 F)
1990	-40.0 C (-40.0 F)
1991	-27.8 C (-18.0 F)
1992	-26.1 C (-15.0 F)
1993	-30.0 C (-22.0 F)
1994	-22.2 C (-8.0 F)
1995	-20.6 C (-5.1 F)
1996	-30.0 C (-22.0 F)
1997	-23.9 C (-11.0 F)
1998	-31.1 C (-24.0 F)
1999	-17.8 C (0.0 F)
2000	-23.3 C (-9.9 F)
2001	-30.6 C (-23.1 F)
2002	-23.9 C (-11.0 F)
2003	-26.7 C (-16.1 F)
2004	-23.9 C (-11.0 F)
2005	-26.1 C (-15.0 F)
2006	-33.3 C (-27.9 F)
2007	-30.0 C (-22.0 F)
2008	-14.4 C (6.1 F)

Wettest day (Rx1day)

The wettest day of the year at Muddy Gap, 1949 to 2008. The record is 68.6 mm (2.7 in) in 1991, marked on the chart; the median year is 26.7 mm (1.1 in).

Wettest day (Rx1day) at Muddy Gap by year
Year	Wettest day (Rx1day)
1949	26.7 mm (1.1 in)
1950	30.0 mm (1.2 in)
1951	23.1 mm (0.9 in)
1952	26.2 mm (1.0 in)
1953	34.3 mm (1.4 in)
1954	50.3 mm (2.0 in)
1955	12.2 mm (0.5 in)
1956	38.4 mm (1.5 in)
1957	52.6 mm (2.1 in)
1958	22.9 mm (0.9 in)
1959	25.4 mm (1.0 in)
1960	16.3 mm (0.6 in)
1961	17.8 mm (0.7 in)
1962	31.8 mm (1.3 in)
1963	38.1 mm (1.5 in)
1964	50.8 mm (2.0 in)
1965	36.8 mm (1.4 in)
1966	22.9 mm (0.9 in)
1967	19.1 mm (0.8 in)
1968	17.8 mm (0.7 in)
1969	7.9 mm (0.31 in)
1970	32.5 mm (1.3 in)
1971	38.1 mm (1.5 in)
1972	25.4 mm (1.0 in)
1973	31.8 mm (1.3 in)
1974	38.6 mm (1.5 in)
1975	33.0 mm (1.3 in)
1976	10.2 mm (0.4 in)
1978	11.9 mm (0.5 in)
1979	31.2 mm (1.2 in)
1980	20.6 mm (0.8 in)
1981	45.2 mm (1.8 in)
1982	43.2 mm (1.7 in)
1983	33.3 mm (1.3 in)
1984	25.4 mm (1.0 in)
1985	22.4 mm (0.9 in)
1986	35.6 mm (1.4 in)
1987	24.6 mm (1.0 in)
1988	21.6 mm (0.9 in)
1989	39.6 mm (1.6 in)
1990	17.5 mm (0.7 in)
1991	68.6 mm (2.7 in)
1992	43.2 mm (1.7 in)
1993	30.0 mm (1.2 in)
1994	27.9 mm (1.1 in)
1995	38.1 mm (1.5 in)
1996	31.2 mm (1.2 in)
1997	19.8 mm (0.8 in)
1998	52.1 mm (2.1 in)
1999	26.7 mm (1.1 in)
2000	42.4 mm (1.7 in)
2001	17.8 mm (0.7 in)
2002	18.5 mm (0.7 in)
2003	24.9 mm (1.0 in)
2004	26.2 mm (1.0 in)
2005	0.0 mm (0.00 in)
2006	25.4 mm (1.0 in)
2007	35.6 mm (1.4 in)
2008	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Muddy Gap, 1949 to 2008. The record is 97.6 mm (3.8 in) in 1991, marked on the chart; the median year is 41.1 mm (1.6 in).

Wettest five days (Rx5day) at Muddy Gap by year
Year	Wettest five days (Rx5day)
1949	28.2 mm (1.1 in)
1950	35.1 mm (1.4 in)
1951	37.9 mm (1.5 in)
1952	34.9 mm (1.4 in)
1953	50.8 mm (2.0 in)
1954	53.6 mm (2.1 in)
1955	18.6 mm (0.7 in)
1956	51.1 mm (2.0 in)
1957	63.0 mm (2.5 in)
1958	34.8 mm (1.4 in)
1959	42.7 mm (1.7 in)
1960	21.0 mm (0.8 in)
1961	21.6 mm (0.9 in)
1962	31.8 mm (1.3 in)
1963	55.9 mm (2.2 in)
1964	85.6 mm (3.4 in)
1965	47.5 mm (1.9 in)
1966	33.8 mm (1.3 in)
1967	44.8 mm (1.8 in)
1968	28.0 mm (1.1 in)
1969	13.9 mm (0.5 in)
1970	68.1 mm (2.7 in)
1971	63.0 mm (2.5 in)
1972	31.0 mm (1.2 in)
1973	48.3 mm (1.9 in)
1974	45.0 mm (1.8 in)
1975	64.0 mm (2.5 in)
1976	13.2 mm (0.5 in)
1978	23.6 mm (0.9 in)
1979	50.5 mm (2.0 in)
1980	51.0 mm (2.0 in)
1981	50.8 mm (2.0 in)
1982	78.8 mm (3.1 in)
1983	42.8 mm (1.7 in)
1984	46.3 mm (1.8 in)
1985	42.0 mm (1.7 in)
1986	48.0 mm (1.9 in)
1987	27.2 mm (1.1 in)
1988	58.5 mm (2.3 in)
1989	41.1 mm (1.6 in)
1990	33.3 mm (1.3 in)
1991	97.6 mm (3.8 in)
1992	63.2 mm (2.5 in)
1993	40.4 mm (1.6 in)
1994	23.1 mm (0.9 in)
1995	48.2 mm (1.9 in)
1996	75.7 mm (3.0 in)
1997	28.9 mm (1.1 in)
1998	52.1 mm (2.1 in)
1999	39.6 mm (1.6 in)
2000	49.0 mm (1.9 in)
2001	17.8 mm (0.7 in)
2002	22.1 mm (0.9 in)
2003	40.6 mm (1.6 in)
2004	26.2 mm (1.0 in)
2005	0.0 mm (0.00 in)
2006	31.8 mm (1.3 in)
2007	36.6 mm (1.4 in)
2008	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Muddy Gap, 1949 to 2008. The record is 105 days in 2002, marked on the chart; the median year is 39 days.

Longest dry spell (CDD) at Muddy Gap by year
Year	Longest dry spell (CDD)
1949	41 days
1950	37 days
1951	24 days
1952	45 days
1953	94 days
1954	34 days
1955	49 days
1956	42 days
1957	58 days
1958	41 days
1959	42 days
1960	34 days
1961	45 days
1962	42 days
1963	53 days
1964	88 days
1965	53 days
1966	37 days
1967	42 days
1968	39 days
1969	50 days
1970	29 days
1971	31 days
1972	37 days
1973	47 days
1974	25 days
1975	43 days
1976	21 days
1978	21 days
1979	37 days
1980	81 days
1981	41 days
1982	28 days
1983	27 days
1984	17 days
1985	30 days
1986	31 days
1987	39 days
1988	50 days
1989	38 days
1990	48 days
1991	33 days
1992	41 days
1993	35 days
1994	39 days
1995	38 days
1996	39 days
1997	30 days
1998	32 days
1999	52 days
2000	47 days
2001	72 days
2002	105 days
2003	33 days
2004	41 days
2005	31 days
2006	56 days
2007	60 days
2008	31 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

37 years with a frost

Across 37 years with a frost, the median last spring frost at Muddy Gap falls on 28 May and the median first autumn frost on 15 September, which leaves a median of 112 days between them.

Fitted over all years, the growing season changes by -0.1 days per decade at this station.

Frost dates and growing season at Muddy Gap
Measure	Median, all years	Earliest period	Recent period (1958 to 2003)	Recent against earliest	Fitted trend
Last spring frost	28 May	n/a	28 May	n/a	+0.2 days per decade
First autumn frost	15 September	n/a	16 September	n/a	0.0 days per decade
Growing days	112 days	n/a	112 days	n/a	-0.1 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

47 years, 1950 to 2007

A day with at least 29.2 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 64.7 mm (2.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Muddy Gap: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.2 mm (1.1 in)
5 years	40.0 mm (1.6 in)
10 years	46.6 mm (1.8 in)
25 years	54.3 mm (2.1 in)
50 years	59.7 mm (2.4 in)	Longer than the 47 years of record
100 years	64.7 mm (2.5 in)	Longer than the 47 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, 47 years of values from 1950 to 2007.

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: 68.6 mm (2.7 in) in 1991; 52.6 mm (2.1 in) in 1957; 50.8 mm (2.0 in) in 1964.

Download the Data

Data for Muddy Gap standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Muddy Gap 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).