Climateby Month

Gillette, WY weather in April

NOAA 1991-2020 normals and daily records · Gillette all year

April in Gillette: cool, with frequent rain and some snow. Highs 56°F, lows 32°F, about 11 wet days and about 9.4 in of snow. A good month for most outdoor plans.

Normal high
56°F
Normal low
32°F
Wet days
11
2.1 in total
Snowfall
9.4 in
snow on the ground 4 days

How April changes from start to finish

Normal values at the start and end of April
April 1April 30
Normal high54°F60°F
Normal low29°F35°F
Chance of a wet day32%38%
Sunrise / sunset6:42 am / 7:28 pm5:54 am / 8:04 pm
Daylight12.8 h14.2 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).

A typical April day

  1. 6 am36°Fdew point 28°F
  2. 9 am45°Fdew point 30°F
  3. Noon51°Fdew point 29°F
  4. 3 pm53°Fdew point 28°F
  5. 6 pm49°Fdew point 29°F
  6. 9 pm39°Fdew point 29°F

NOAA hourly normals (local standard time) from Gillette Campbell Airport (4 mi away); average wind 11 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)8 of 30
  • Hot dayshigh 90°F or more0 of 30
  • Wet daysat least 0.01 in of rain or melted snow11 of 30
  • Notable rainat least 0.10 in5 of 30
  • Freezing nightslow 32°F or below17 of 30
  • Snow on the groundsnow depth 1 in or more4 of 30

Average days per April, counted from daily records for each year 1991-2020.

Rain and snow in April

Normal precipitation is 2.1 in; a dry April brings about 1.6 in and a wet one about 2.4 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 9.4 in, with about 2 days of an inch or more.

How April varies from year to year

  • Warmest April, 1991-20202012: average high 65°F
  • Coolest April1997: average high 48°F
  • Wettest April1999: 4.8 in
  • Driest April2004: 0.7 in
  • Highest reading87°F (April 30, 1992)
  • Lowest reading-5°F (April 11, 1997)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

April compared with March and May

MarchAprilMay
Normal high49°F56°F66°F
Normal low25°F32°F41°F
Wet days81113
Comfortable days4814
Daylight11.9 h13.5 h14.8 h

Highs change by +7°F from March and +10°F into May.

Nearby alternatives in April

How Gillette ranks in April

  • Normal high319th warmest of 378 cities; 1st of 4 in Wyoming
  • Wet days255th driest of 378

What to pack for Gillette in April

  • A warm jacket – lows near 32°F, highs near 56°F
  • A rain jacket or umbrella – rain or snow on about 11 days
  • Waterproof boots – about 9.4 in of snow in a typical year
  • A hat and gloves – about 17 freezing nights

Heating and cooling

April has 629 heating degree days and 0 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.

Questions

How cold is Gillette in April?

The normal high is 56°F and the normal low is 32°F. From 1991 to 2020 the coldest April reading was -5°F (April 11, 1997).

Does it rain a lot in Gillette in April?

About 11 days in April have at least 0.01 in of precipitation, and the normal total is 2.1 in. The wettest April in 1991-2020 was in 1999 (4.8 in); the driest was in 2004 (0.7 in).

Does it snow in Gillette in April?

Yes. Normal snowfall in April is 9.4 in, and snow covers the ground on about 4 days.

Is April a good time to visit Gillette?

April ranks 4th of 12 months on our comfort score for Gillette (60 out of 100). It has about 8 comfortable days (judged by temperature only). The best months are May and June.

Where the numbers come from

  • Temperature, rain, snowfall and snow depth: Gillette 4SE (USC00483855), 3.1 mi ESE of the city center, 4,640 ft (86 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates and humidity and wind by hour: Gillette Campbell Airport (USW00094023), 3.9 mi NNW of the city center, 4,354 ft (200 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Not available for this location: cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).