Chinook climate

Chinook Weather in April

NOAA 1991-2020 normals for Chinook, 0.4 km from Chinook

Average highs run from 51°F on April 1 to 62°F on April 30, and lows from 25°F to 33°F. Normal precipitation for the month is 1.04 in over about 6 wet days.

April day by day

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

Normal daily high and low temperature at Chinook, in °F, with the record for each date.-250255075100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
57°F
Average low
29°F
Precipitation
1.04 in
Snowfall
2.7 in
Record high
91°FApr 20, 1980
Record low
-14°FApr 6, 1975
Chance of a freeze
100%
Daylight
12 h 54 min to 14 h 32 min
Cloud cover
70%
Humidity
58%
Dew point
28°F
Wind
11.4 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
Apr 151°F25°F72°F 1991-8°F 202018%10%
Apr 252°F26°F77°F 1990-12°F 202018%10%
Apr 352°F26°F77°F 1992-7°F 201818%9%
Apr 453°F26°F74°F 2012-2°F 197518%9%
Apr 553°F27°F75°F 1972-10°F 197519%9%
Apr 653°F27°F78°F 1976-14°F 197519%9%
Apr 754°F27°F83°F 20051°F 196419%9%
Apr 854°F28°F83°F 19776°F 198219%9%
Apr 955°F28°F81°F 19969°F 201320%8%
Apr 1055°F28°F76°F 20236°F 199020%8%
Apr 1155°F28°F77°F 198810°F 202220%8%
Apr 1256°F29°F80°F 19769°F 202020%8%
Apr 1356°F29°F80°F 20084°F 198621%8%
Apr 1457°F29°F83°F 1963-3°F 198621%7%
Apr 1557°F29°F81°F 19627°F 198621%7%
Apr 1657°F30°F83°F 19779°F 202221%7%
Apr 1758°F30°F82°F 199412°F 201322%7%
Apr 1858°F30°F78°F 197414°F 196622%6%
Apr 1958°F30°F86°F 196211°F 196622%6%
Apr 2059°F31°F91°F 198012°F 200822%6%
Apr 2159°F31°F81°F 2009-3°F 196723%6%
Apr 2259°F31°F86°F 1969-14°F 196723%6%
Apr 2360°F31°F89°F 2012-4°F 196723%5%
Apr 2460°F32°F86°F 19624°F 196723%5%
Apr 2560°F32°F87°F 197419°F 196724%5%
Apr 2661°F32°F85°F 197717°F 198824%5%
Apr 2761°F33°F85°F 200115°F 202624%5%
Apr 2861°F33°F91°F 200114°F 201925%5%
Apr 2962°F33°F85°F 199211°F 201925%4%
Apr 3062°F33°F87°F 196817°F 198425%4%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Chinook, 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).

April 1
sunrise 6:54 AM, sunset 7:48 PM
April 30
sunrise 5:59 AM, sunset 8:31 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00241722 (Chinook), public domain. Records: NOAA GHCN-Daily, station USW00094012, 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.