Dillon climate

Dillon Weather in April

NOAA 1991-2020 normals for Dillon U Of Montana Western, 0.8 km from Dillon

Average highs run from 51°F on April 1 to 59°F on April 30, and lows from 26°F to 31°F. Normal precipitation for the month is 1.51 in over about 9 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 Dillon, in °F, with the record for each date.-20020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
54°F
Average low
28°F
Precipitation
1.51 in
Snowfall
0.2 in
Record high
85°FApr 27, 1987
Record low
-5°FApr 8, 1982
Chance of a freeze
100%
Daylight
12 h 48 min to 14 h 15 min
Cloud cover
69%
Humidity
68%
Dew point
23°F
Wind
7.8 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
Apr 151°F26°F73°F 19667°F 197524%2%
Apr 251°F26°F73°F 19901°F 194524%2%
Apr 351°F27°F75°F 19928°F 194524%2%
Apr 451°F27°F72°F 196013°F 198325%1%
Apr 551°F27°F73°F 19598°F 198225%1%
Apr 652°F27°F71°F 19896°F 195525%1%
Apr 752°F27°F70°F 19775°F 198226%1%
Apr 852°F27°F73°F 1977-5°F 198226%1%
Apr 952°F27°F73°F 20169°F 197526%1%
Apr 1053°F27°F73°F 198514°F 197527%1%
Apr 1153°F28°F74°F 19888°F 195327%1%
Apr 1253°F28°F75°F 19889°F 202227%1%
Apr 1353°F28°F73°F 20041°F 202227%1%
Apr 1454°F28°F77°F 19854°F 202228%1%
Apr 1554°F28°F76°F 198811°F 197328%1%
Apr 1654°F28°F76°F 198812°F 201328%1%
Apr 1755°F28°F77°F 198711°F 201328%1%
Apr 1855°F29°F77°F 194611°F 194129%1%
Apr 1955°F29°F80°F 19621°F 194129%1%
Apr 2055°F29°F78°F 198010°F 200829%1%
Apr 2156°F29°F78°F 19809°F 195129%1%
Apr 2256°F29°F78°F 198715°F 196829%1%
Apr 2356°F30°F78°F 194913°F 201330%1%
Apr 2457°F30°F77°F 194618°F 196030%0%
Apr 2557°F30°F82°F 194616°F 198530%0%
Apr 2658°F30°F80°F 199218°F 194830%0%
Apr 2758°F31°F85°F 198720°F 198430%0%
Apr 2858°F31°F84°F 198714°F 198430%0%
Apr 2959°F31°F80°F 199214°F 201131%0%
Apr 3059°F31°F81°F 202116°F 195031%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Dillon, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

April 1
sunrise 7:11 AM, sunset 7:59 PM
April 30
sunrise 6:21 AM, sunset 8:36 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00242409 (Dillon U Of Montana Western), public domain. Records: NOAA GHCN-Daily, station USW00024138, 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.