Sweetwater County climate

Sweetwater County Weather in February

NOAA 1991-2020 normals for Rock Springs AP, 16.2 km from Sweetwater County

Average highs run from 30°F on February 1 to 37°F on February 28, and lows from 14°F to 19°F. Normal precipitation for the month is 0.37 in over about 5 wet days.

February day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Sweetwater County, in °F, with the record for each date.-40-200204060801510152025
  • Normal low
  • Normal high
  • Record high
  • Record low

February at a glance

Average high
33°F
Average low
16°F
Precipitation
0.37 in
Snowfall
7.9 in
Record high
60°FFeb 20, 1977
Record low
-29°FFeb 7, 1989
Chance of a freeze
100%
Daylight
10 h 04 min to 11 h 13 min
Cloud cover
61%
Humidity
72%
Dew point
15°F
Wind
13.2 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Feb 130°F14°F58°F 2003-25°F 198518%21%
Feb 230°F14°F49°F 2025-21°F 201118%21%
Feb 330°F14°F54°F 2025-22°F 198918%21%
Feb 431°F14°F56°F 1963-23°F 198918%21%
Feb 531°F14°F54°F 2026-22°F 198218%21%
Feb 631°F14°F57°F 2015-25°F 198918%21%
Feb 731°F14°F55°F 2015-29°F 198918%21%
Feb 831°F14°F55°F 2026-25°F 198918%21%
Feb 931°F14°F53°F 2015-22°F 200118%21%
Feb 1031°F15°F57°F 1951-13°F 198118%21%
Feb 1132°F15°F51°F 1962-7°F 194818%21%
Feb 1232°F15°F56°F 1954-14°F 194818%21%
Feb 1332°F15°F55°F 2015-11°F 194918%21%
Feb 1432°F15°F55°F 2015-10°F 202118%21%
Feb 1533°F15°F51°F 1971-9°F 199318%21%
Feb 1633°F16°F55°F 1970-13°F 197318%21%
Feb 1733°F16°F54°F 1977-20°F 200618%20%
Feb 1833°F16°F54°F 1958-18°F 200618%20%
Feb 1934°F16°F55°F 1958-9°F 201918%20%
Feb 2034°F17°F60°F 1977-9°F 195518%20%
Feb 2134°F17°F59°F 1982-10°F 201818%20%
Feb 2235°F17°F54°F 1958-12°F 202318%20%
Feb 2335°F18°F54°F 2002-14°F 202318%20%
Feb 2436°F18°F55°F 1981-14°F 196018%20%
Feb 2536°F18°F55°F 1986-5°F 196018%20%
Feb 2636°F19°F52°F 1950-10°F 196018%19%
Feb 2737°F19°F54°F 2016-15°F 196018%19%
Feb 2837°F19°F55°F 2025-13°F 199618%19%
Feb 2937°F19°F54°F 1988-17°F 196019%19%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sweetwater County, in percent, and of at least 0.1 inch of snowfall.051015202511020
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MST).

February 1
sunrise 7:27 AM, sunset 5:31 PM
February 28
sunrise 6:52 AM, sunset 6:05 PM

Every day of February: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024027 (Rock Springs AP), public domain. Records: NOAA GHCN-Daily, station USW00024027, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.