Preliminary
Wyoming Monthly Climatology
January 2003
Statewide Summary
January temperatures generally ranged from 8°F above normal at Torrington to 12°F above normal at Rock Springs. Precipitation ranged from 4 percent of normal in Cheyenne to 84 percent of normal in Sheridan. (See 30 Day MAP) for 1-30 January and 60 Day MAP) for 2 December 2002-30 January 2003 percentages from normal.
The average temperature in January 2003 was 26.7°F. This was 7.8°F
warmer than the 1895-2003 average, the 3rd warmest January in 109 years.
The temperature trend for the period of record (1895 to present) is 0.1
degree Fahrenheit per decade.
0.63 inch of precipitation fell in January. This was -0.08 inch less
than the 1895 2003 average, the 46th driest such month on record. The
precipitation trend for the period of record (1895 to present) is -0.03
inch per decade.
Cheyenne
The average temperature in January was 35.1°F. This is 9.2°F warmer than normal and is the 3rd warmest January since 1915. The maximum for the month was 64 °F on the 8th (record for the day) and the minimum of 6°F occurred on the 22th. Precipitation total of 0.02 inch is 4 percent of normal and represents the 3rd driest (tied) January since 1915. Snowfall totaled 2.0 inches which is 27 percent of the long term average.
past 30-days precipitation
past 30-days temperature
past 90-days precipitation
past 90-days temperature
past 365-days precipitation
past 365-days temperature
Laramie
The average temperature in January was 30.0°F. This is 9.6°F warmer than normal and is the warmest January since 1949. The maximum for the month was 55°F on the 27th (record for the day). Another record high of 51°F was set on the 19th. The minimum for the month was 0°F that occurred on the 1st. Precipitation total of 0.04 inch is 11 percent of normal and ties for the 2rd driest January since 1949. Snowfall totaled 3.0 inches which is 56 percent of the long term average.
Rawlins
The average temperature in January was 30.5°F. This is 7.5°F warmer than normal and is the warmest January since 1952. The maximum temperature for the month was 52°F on the 27th (record for the day). Another record high 47°F occurred on the 8th. The minimum temperature for the month of 3°F occurred on the 10th. Precipitation total of 0.14 inch is 25 percent of normal and represents the 4th driest January since 1952. Snowfall totaled 2.0 inches which is 24 percent of normal.
Rock Springs
The average temperature in January was 30.7°F. This is 11.7°F warmer than normal and is the warmest January since 1949. The maximum temperature for the month was 53°F on the 31st and the minimum of 7°F occurred on the 10th. Precipitation total of 0.05 inch is 8 percent of normal and is the 2nd driest January since 1949. Snowfall totaled 1.2 inches which is 17 percent of the long term average.
Evanston
The average temperature in January was 29.5°F. This is 10.0°F warmer than normal and is the warmest January since 1899. The maximum temperature for the month was 49°F on the 27th and the minimum of 11°F occurred on the 11th. Precipitation total of 0.24 inch is 35 percent of normal and is the 13th driest January since 1899. Snowfall totaled 2.0 inches which is 19 percent of the long term average.
Big Piney
The average temperature in January was 19.6°F. This is 9.5°F warmer than normal and is the 2nd warmest January since 1949. The maximum temperature for the month was 48°F on the 31st (record for the day) and the minimum of -10°F occurred on the 8th. Precipitation total of 0.08 inch is 18 percent of normal and is tied for the 6th driest January since 1949. Snowfall totaled 1.8 inches which is 43 percent of the long term average.
Lander
The average temperature in January was 28.3°F. This is 8.0°F warmer than normal and is the 8th warmest January since 1891. The maximum temperature for the month was 58°F on the 31st. A record high of 56°F was set on the 27th. The minimum for the month of 4°F occurred on the 10th. Precipitation total of 0.32 inch is 62 percent of normal. Snowfall totaled 4.8 inches which is 45 percent of the long term average.
past 30-days precipitation
past 30-days temperature
past 90-days precipitation
past 90-days temperature
past 365-days precipitation
past 365-days temperature
Riverton
The average temperature in January was 26.0°F. This is 11.1°F warmer than normal and is the 4th warmest January since 1918. The maximum temperature for the month was 54°F on the 27th. A record high of 49°F occurred on the 3rd. The minimum for the month of 2°F occurred on the 10th and 11th. Precipitation total of 0.07 inch is 25 percent of normal. Snowfall totaled 1.4 inches which is 30 percent of the long term average.
Worland
The average temperature in January was 26.6°F. This is 9.6°F warmer than normal and is the 4th warmest January since 1961. The maximum temperature for the month was 47°F on the 31st, and the minimum of 3°F occurred on the 11th. Precipitation total of 0.18 inch is 59 percent of normal. Snowfall totaled 2.7 inches which is 47 percent of the long term average.
Sheridan
The average temperature in January was 29.9°F. This is 8.6°F warmer than normal and is tied for the 7th warmest January since 1949. The maximum temperature for the month was 67°F on the 7th (record for the daily). Another record high of 61°F was set on the 19th. The minimum for the month of 0°F occurred on the 22nd. Precipitation total of 0.65 inch is 84 percent of normal. Snowfall totaled 14.0 inches which is 122 percent of the long term average.
past 30-days precipitation
past 30-days temperature
past 90-days precipitation
past 90-days temperature
past 365-days precipitation
past 365-days temperature
Casper
The average temperature in January was 31.2°F and is 9.0°F warmer than normal and is tied as 3rd warmest January since 1940. The maximum temperature for the month was 56°F on the 27th. Another record high of 54°F was set on the 20th. The minimum for the month of -1°F occurred on the 10th. Precipitation total of 0.10 inch is 17 percent of normal and is the 5th driest January since 1940. Snowfall totaled 0.4 inch which is 4 percent of the long term average.
past 30-days precipitation
past 30-days temperature
past 90-days precipitation
past 90-days temperature
past 365-days precipitation
past 365-days temperature
Torrington
The average temperature in January was 32.8°F. This is 7.9°F warmer than normal and is the 5th warmest January since 1922. The maximum temperature for the month was 65°F on the 7th (record for the day, tied). Another record high of 64°F was set on the 8th. The minimum for the month of -2°F occurred on the 22nd. Precipitation total of 0.16 inch is 52 percent of normal. Snowfall totaled 2.1 inches which is 49 percent of the long term average.
Additional Stations:
Buffalo
Douglas
Gillette
Greybull
Yellowstone
This information was compiled by the Wyoming State Climatologist, University of Wyoming. For more information, contact Jan Curtis at (307) 766-6659. For periodic updates, visit http://www.wrds.uwyo.edu This site includes a searchable database for Wyoming climate and water. For additional daily and hourly climatology, click on this interactive map by selecting a city. Then click on the "Monthly History" link on the left menu. Record daily temperatures are based on the period since 1948-9 for all cities unless otherwise noted.
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