Grand County climate

Grand County Weather in March

NOAA 1991-2020 normals for Williams Fork Dam, 10.3 km from Grand County

Average highs run from 36°F on March 1 to 48°F on March 31, and lows from 8°F to 20°F. Normal precipitation for the month is 0.98 in over about 8 wet days.

March day by day

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

Normal daily high and low temperature at Grand County, in °F, with the record for each date.-40-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
42°F
Average low
15°F
Precipitation
0.98 in
Snowfall
10.4 in
Record high
69°FMar 25, 2026
Record low
-30°FMar 3, 1965
Chance of a freeze
100%
Daylight
11 h 18 min to 12 h 38 min
Cloud cover
68%
Humidity
84%
Dew point
18°F
Wind
5.8 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
Mar 136°F8°F52°F 2008-18°F 195129%22%
Mar 237°F9°F51°F 2009-25°F 200229%22%
Mar 337°F9°F53°F 2025-30°F 196528%22%
Mar 437°F10°F50°F 1987-20°F 200728%21%
Mar 538°F10°F53°F 1950-25°F 198428%21%
Mar 638°F11°F55°F 1987-22°F 197628%21%
Mar 739°F11°F53°F 1987-22°F 197127%20%
Mar 839°F11°F49°F 1989-18°F 202227%20%
Mar 940°F12°F54°F 1953-18°F 196427%20%
Mar 1040°F12°F55°F 1989-19°F 196927%19%
Mar 1140°F13°F53°F 1989-28°F 202226%19%
Mar 1241°F13°F50°F 1972-20°F 195626%19%
Mar 1341°F14°F53°F 1949-28°F 196226%18%
Mar 1442°F14°F51°F 2003-29°F 196226%18%
Mar 1542°F14°F54°F 2015-20°F 195226%18%
Mar 1643°F15°F57°F 2015-17°F 196226%18%
Mar 1743°F15°F60°F 2012-15°F 198026%17%
Mar 1843°F16°F61°F 2026-15°F 198026%17%
Mar 1944°F16°F65°F 2026-20°F 196526%17%
Mar 2044°F16°F66°F 2026-20°F 201026%17%
Mar 2145°F17°F67°F 2026-16°F 196426%17%
Mar 2245°F17°F66°F 2026-18°F 195227%17%
Mar 2345°F18°F61°F 2004-15°F 196627%17%
Mar 2446°F18°F65°F 2026-10°F 196627%17%
Mar 2546°F18°F69°F 2026-17°F 199627%17%
Mar 2646°F19°F69°F 2026-21°F 195528%17%
Mar 2747°F19°F60°F 2026-18°F 195528%17%
Mar 2847°F19°F62°F 2026-25°F 197528%17%
Mar 2947°F19°F61°F 2026-25°F 197528%17%
Mar 3048°F20°F60°F 2026-10°F 199429%17%
Mar 3148°F20°F62°F 20041°F 195429%17%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Grand County, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

March 1
sunrise 6:38 AM, sunset 5:56 PM
March 31
sunrise 6:50 AM, sunset 7:28 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00059096 (Williams Fork Dam), public domain. Records: NOAA GHCN-Daily, station USC00053500, 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.