Deer Park Weather Records (USS0008G10S)

Record envelope, standing records and threshold days for Deer Park (USS0008G10S), Wyoming, United States, with 30 years of record.

Key Facts for Deer Park

Deer Park (USS0008G10S) is a weather station in Wyoming, United States at 42.59 latitude and -108.90 longitude, 2,957 m (9,700 ft) above sea level.
The station reports from 1997 to 2026, 30 years of record.
1,464 records set at Deer Park still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Wyoming, United States, 42.59 latitude, -108.90 longitude.
Elevation: 2,957 m (9,700 ft).
Period of record: 1997 to 2026, 30 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

34 days at or beyond a record

The band shows the record high and record low for each calendar day at Deer Park. The lines show the 2026 daily maximum and minimum. 34 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Deer Park, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.7 C (54.9 F)	-32.3 C (-26.1 F)	7.5 C (45.5 F)	-32.3 C (-26.1 F)
Feb	12.1 C (53.8 F)	-32.1 C (-25.8 F)	12.1 C (53.8 F)	-29.8 C (-21.6 F)
Mar	16.4 C (61.5 F)	-29.6 C (-21.3 F)	13.2 C (55.8 F)	-20.7 C (-5.3 F)
Apr	19.1 C (66.4 F)	-24.2 C (-11.6 F)	16.0 C (60.8 F)	-20.0 C (-4.0 F)
May	22.2 C (72.0 F)	-16.2 C (2.8 F)	20.6 C (69.1 F)	-8.6 C (16.5 F)
Jun	26.7 C (80.1 F)	-8.1 C (17.4 F)	24.0 C (75.2 F)	-4.7 C (23.5 F)
Jul	29.3 C (84.7 F)	-2.0 C (28.4 F)	24.9 C (76.8 F)	2.9 C (37.2 F)
Aug	28.5 C (83.3 F)	-2.8 C (27.0 F)	26.3 C (79.3 F)	0.2 C (32.4 F)
Sep	26.2 C (79.2 F)	-12.9 C (8.8 F)	20.1 C (68.2 F)	-1.3 C (29.7 F)
Oct	20.8 C (69.4 F)	-25.2 C (-13.4 F)	15.4 C (59.7 F)	-16.2 C (2.8 F)
Nov	15.9 C (60.6 F)	-31.3 C (-24.3 F)	11.7 C (53.1 F)	-19.8 C (-3.6 F)
Dec	13.3 C (55.9 F)	-36.3 C (-33.3 F)	8.4 C (47.1 F)	-25.1 C (-13.2 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Deer Park still stand. 2025 holds the most, with 68.

Standing records at Deer Park by the year they were set
Year set	Standing records
1997	7
1998	47
1999	49
2000	54
2001	39
2002	65
2003	65
2004	49
2005	48
2006	58
2007	45
2008	56
2009	58
2010	47
2011	35
2012	58
2013	62
2014	51
2015	58
2016	51
2017	45
2018	36
2019	39
2020	57
2021	61
2022	54
2023	50
2024	52
2025	68

Wettest Day of Each Month

May: 68.6 mm (2.7 in)

The wettest day on record for each calendar month at Deer Park. The most was 68.6 mm (2.7 in) on 19 May 2011.

Record daily precipitation for each month at Deer Park
Month	Record daily precipitation (mm)	Date
Jan	58.4 mm (2.3 in)	9 January 2017
Feb	61.0 mm (2.4 in)	2 February 2025
Mar	50.8 mm (2.0 in)	31 March 2017
Apr	58.4 mm (2.3 in)	22 April 1999
May	68.6 mm (2.7 in)	19 May 2011
Jun	38.1 mm (1.5 in)	26 June 2004
Jul	27.9 mm (1.1 in)	23 July 2004
Aug	33.0 mm (1.3 in)	20 August 2004
Sep	40.6 mm (1.6 in)	22 September 2016
Oct	35.6 mm (1.4 in)	24 October 1997
Nov	53.3 mm (2.1 in)	16 November 2017
Dec	55.9 mm (2.2 in)	16 December 2016

Period of Record Coverage

1997 to 2025

29 years of record at Deer Park, 1997 to 2025. 1 years have data for under 90 percent of days and are left out of rankings: 1997.

Days with data per year at Deer Park
Year	Days with data	Share of year	Complete
1997	141	39%	No
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	365	100%	Yes
2018	364	100%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	364	100%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

28 complete years, 1998 to 2025

One stripe for each of 28 complete years at Deer Park, 1998 to 2025. Blue stripes are years cooler than the station's own mean of 1.2 C (34.2 F); red stripes are warmer. The coolest year was 2002, at 0.3 C (32.5 F), and the warmest was 2012, at 2.4 C (36.3 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Deer Park as warming stripes, 1998 to 2025
Year	Annual mean temperature	Difference from the station mean
1998	0.3 C	-0.96 C
1999	0.8 C	-0.48 C
2000	0.9 C	-0.33 C
2001	1.4 C	+0.14 C
2002	0.3 C	-0.98 C
2003	1.3 C	+0.08 C
2004	0.8 C	-0.45 C
2005	1.3 C	+0.06 C
2006	1.4 C	+0.17 C
2007	2.0 C	+0.75 C
2008	0.3 C	-0.93 C
2009	0.7 C	-0.60 C
2010	1.0 C	-0.28 C
2011	0.6 C	-0.64 C
2012	2.4 C	+1.15 C
2013	1.2 C	-0.01 C
2014	1.3 C	+0.06 C
2015	2.3 C	+1.04 C
2016	2.1 C	+0.80 C
2017	1.5 C	+0.27 C
2018	1.2 C	-0.08 C
2019	0.6 C	-0.67 C
2020	1.4 C	+0.11 C
2021	1.7 C	+0.44 C
2022	1.0 C	-0.21 C
2023	1.1 C	-0.15 C
2024	2.1 C	+0.82 C
2025	2.1 C	+0.87 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1997 to 2026

Yearly extremes at Deer Park: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	29.3 C (84.7 F)	2002	26.7 C (80.0 F)	30
Coldest night (TNn)	-36.3 C (-33.3 F)	1998	-28.8 C (-19.8 F)	30
Wettest day (Rx1day)	68.6 mm (2.7 in)	2011	38.1 mm (1.5 in)	30
Wettest five days (Rx5day)	162.5 mm (6.4 in)	2017	69.8 mm (2.7 in)	30
Longest dry spell (CDD)	71 days	2006	22 days	30

Hottest day (TXx)

The hottest day of the year at Deer Park, 1997 to 2026. The record is 29.3 C (84.7 F) in 2002, marked on the chart; the median year is 26.7 C (80.0 F).

Hottest day (TXx) at Deer Park by year
Year	Hottest day (TXx)
1997	23.5 C (74.3 F)
1998	26.7 C (80.1 F)
1999	23.1 C (73.6 F)
2000	26.7 C (80.1 F)
2001	28.5 C (83.3 F)
2002	29.3 C (84.7 F)
2003	27.5 C (81.5 F)
2004	24.5 C (76.1 F)
2005	26.8 C (80.2 F)
2006	29.1 C (84.4 F)
2007	27.2 C (81.0 F)
2008	25.6 C (78.1 F)
2009	26.0 C (78.8 F)
2010	25.5 C (77.9 F)
2011	24.9 C (76.8 F)
2012	26.6 C (79.9 F)
2013	26.7 C (80.1 F)
2014	25.9 C (78.6 F)
2015	26.0 C (78.8 F)
2016	26.2 C (79.2 F)
2017	24.2 C (75.6 F)
2018	26.6 C (79.9 F)
2019	25.1 C (77.2 F)
2020	27.1 C (80.8 F)
2021	27.8 C (82.0 F)
2022	26.9 C (80.4 F)
2023	26.8 C (80.2 F)
2024	26.7 C (80.1 F)
2025	26.3 C (79.3 F)
2026	28.3 C (82.9 F)

Coldest night (TNn)

The coldest night of the year at Deer Park, 1997 to 2026. The record is -36.3 C (-33.3 F) in 1998, marked on the chart; the median year is -28.8 C (-19.8 F).

Coldest night (TNn) at Deer Park by year
Year	Coldest night (TNn)
1997	-23.3 C (-9.9 F)
1998	-36.3 C (-33.3 F)
1999	-25.4 C (-13.7 F)
2000	-24.0 C (-11.2 F)
2001	-28.2 C (-18.8 F)
2002	-29.2 C (-20.6 F)
2003	-29.1 C (-20.4 F)
2004	-29.6 C (-21.3 F)
2005	-28.8 C (-19.8 F)
2006	-27.5 C (-17.5 F)
2007	-28.4 C (-19.1 F)
2008	-26.8 C (-16.2 F)
2009	-32.6 C (-26.7 F)
2010	-28.8 C (-19.8 F)
2011	-29.4 C (-20.9 F)
2012	-26.4 C (-15.5 F)
2013	-31.1 C (-24.0 F)
2014	-31.3 C (-24.3 F)
2015	-26.6 C (-15.9 F)
2016	-28.9 C (-20.0 F)
2017	-27.8 C (-18.0 F)
2018	-32.1 C (-25.8 F)
2019	-28.0 C (-18.4 F)
2020	-26.0 C (-14.8 F)
2021	-25.8 C (-14.4 F)
2022	-32.9 C (-27.2 F)
2023	-31.3 C (-24.3 F)
2024	-29.1 C (-20.4 F)
2025	-32.3 C (-26.1 F)
2026	-23.8 C (-10.8 F)

Wettest day (Rx1day)

The wettest day of the year at Deer Park, 1997 to 2026. The record is 68.6 mm (2.7 in) in 2011, marked on the chart; the median year is 38.1 mm (1.5 in).

Wettest day (Rx1day) at Deer Park by year
Year	Wettest day (Rx1day)
1997	35.6 mm (1.4 in)
1998	43.2 mm (1.7 in)
1999	58.4 mm (2.3 in)
2000	40.6 mm (1.6 in)
2001	30.5 mm (1.2 in)
2002	33.0 mm (1.3 in)
2003	38.1 mm (1.5 in)
2004	38.1 mm (1.5 in)
2005	50.8 mm (2.0 in)
2006	25.4 mm (1.0 in)
2007	48.3 mm (1.9 in)
2008	38.1 mm (1.5 in)
2009	30.5 mm (1.2 in)
2010	55.9 mm (2.2 in)
2011	68.6 mm (2.7 in)
2012	35.6 mm (1.4 in)
2013	25.4 mm (1.0 in)
2014	38.1 mm (1.5 in)
2015	27.9 mm (1.1 in)
2016	55.9 mm (2.2 in)
2017	58.4 mm (2.3 in)
2018	38.1 mm (1.5 in)
2019	27.9 mm (1.1 in)
2020	35.6 mm (1.4 in)
2021	33.0 mm (1.3 in)
2022	35.6 mm (1.4 in)
2023	40.6 mm (1.6 in)
2024	35.6 mm (1.4 in)
2025	61.0 mm (2.4 in)
2026	45.7 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Deer Park, 1997 to 2026. The record is 162.5 mm (6.4 in) in 2017, marked on the chart; the median year is 69.8 mm (2.7 in).

Wettest five days (Rx5day) at Deer Park by year
Year	Wettest five days (Rx5day)
1997	38.1 mm (1.5 in)
1998	63.5 mm (2.5 in)
1999	154.9 mm (6.1 in)
2000	83.8 mm (3.3 in)
2001	66.0 mm (2.6 in)
2002	45.7 mm (1.8 in)
2003	73.7 mm (2.9 in)
2004	101.6 mm (4.0 in)
2005	78.8 mm (3.1 in)
2006	88.9 mm (3.5 in)
2007	83.9 mm (3.3 in)
2008	60.9 mm (2.4 in)
2009	73.7 mm (2.9 in)
2010	91.4 mm (3.6 in)
2011	96.5 mm (3.8 in)
2012	68.6 mm (2.7 in)
2013	66.0 mm (2.6 in)
2014	55.8 mm (2.2 in)
2015	55.8 mm (2.2 in)
2016	91.4 mm (3.6 in)
2017	162.5 mm (6.4 in)
2018	50.7 mm (2.0 in)
2019	63.4 mm (2.5 in)
2020	58.4 mm (2.3 in)
2021	71.0 mm (2.8 in)
2022	50.8 mm (2.0 in)
2023	63.5 mm (2.5 in)
2024	66.1 mm (2.6 in)
2025	94.0 mm (3.7 in)
2026	91.4 mm (3.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Deer Park, 1997 to 2026. The record is 71 days in 2006, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Deer Park by year
Year	Longest dry spell (CDD)
1997	10 days
1998	19 days
1999	19 days
2000	16 days
2001	24 days
2002	20 days
2003	24 days
2004	14 days
2005	26 days
2006	71 days
2007	14 days
2008	21 days
2009	20 days
2010	26 days
2011	46 days
2012	20 days
2013	23 days
2014	12 days
2015	22 days
2016	22 days
2017	31 days
2018	55 days
2019	31 days
2020	24 days
2021	20 days
2022	14 days
2023	12 days
2024	27 days
2025	26 days
2026	30 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

28 years with a frost

Across 28 years with a frost, the median last spring frost at Deer Park falls on 23 June and the median first autumn frost on 21 August, which leaves a median of 63 days between them.

Fitted over all years, the growing season changes by -2.6 days per decade at this station.

Frost dates and growing season at Deer Park
Measure	Median, all years	Earliest period	Recent period (1998 to 2025)	Recent against earliest	Fitted trend
Last spring frost	23 June	n/a	23 June	n/a	-1.5 days per decade
First autumn frost	21 August	n/a	21 August	n/a	-4.2 days per decade
Growing days	63 days	n/a	63 days	n/a	-2.6 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.

Download the Data

Data for Deer Park standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Deer Park 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 2026-10-17 (17 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).