Great Falls, MT weather in April
April in Great Falls: cool, with frequent rain and some snow. Highs 55°F, lows 30°F, rain or snow on about 10 days and about 9.4 in of snow.
- Normal high
- 55°F
- Normal low
- 30°F
- Wet days
- 10
- 1.7 in total
- Snowfall
- 9.4 in
- snow on the ground 3 days
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 51°F | 59°F |
| Normal low | 27°F | 33°F |
| Chance of a wet day | 30% | 33% |
| Sunrise / sunset | 7:03 am / 7:54 pm | 6:09 am / 8:35 pm |
| Daylight | 12.8 h | 14.4 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
- 6 am35°Fdew point 26°F
- 9 am44°Fdew point 28°F
- Noon50°Fdew point 27°F
- 3 pm52°Fdew point 26°F
- 6 pm50°Fdew point 26°F
- 9 pm41°Fdew point 28°F
NOAA hourly normals (local standard time) from Great Falls Intl Airport (4 mi away); average wind 11 mph; clear or few clouds in 49% of daytime hours, mostly cloudy or overcast in 42%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F6 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow10 of 30
- Notable rainat least 0.10 in5 of 30
- Freezing nightslow 32°F or below18 of 30
- Snow on the groundsnow depth 1 in or more3 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain and snow in April
Normal precipitation is 1.7 in; a dry April brings about 1.1 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 61°F
- Coolest April1997: average high 47°F
- Wettest April2017: 3.6 in
- Driest April2000: 0.3 in
- Highest reading84°F (April 28, 2018)
- Lowest reading-8°F (April 21, 2008)
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
| March | April | May | |
|---|---|---|---|
| Normal high | 46°F | 55°F | 65°F |
| Normal low | 22°F | 30°F | 38°F |
| Wet days | 8 | 10 | 11 |
| Comfortable days | 2 | 6 | 14 |
| Daylight | 11.9 h | 13.7 h | 15.1 h |
Highs change by +9°F from March and +10°F into May.
Nearby alternatives in April
- Cooler: Big Sky, MT153 mi · high 48°F · 11 wet days
How Great Falls ranks in April
- Normal high335th warmest of 378 cities; 4th of 6 in Montana
- Wet days225th driest of 378
- Comfortable days270th most of 340
What to pack for Great Falls in April
- A warm jacket – lows near 30°F, highs near 55°F
- Layers – afternoons near 55°F but nights near 30°F
- A rain jacket or umbrella – rain or snow on about 10 days
- Waterproof boots – about 9.4 in of snow in a typical year
- A hat and gloves – about 18 freezing nights
Heating and cooling
April has 678 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 Great Falls in April?
The normal high is 55°F and the normal low is 30°F. From 1991 to 2020 the coldest April reading was -8°F (April 21, 2008).
Does it rain a lot in Great Falls in April?
About 10 days in April have at least 0.01 in of precipitation, and the normal total is 1.7 in. The wettest April in 1991-2020 was in 2017 (3.6 in); the driest was in 2000 (0.3 in).
Does it snow in Great Falls in April?
Yes. Normal snowfall in April is 9.4 in, and snow covers the ground on about 3 days.
Is April a good time to visit Great Falls?
April ranks 6th of 12 months on our comfort score for Great Falls (58 out of 100). It has about 6 comfortable days. The best month is June.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Great Falls Intl Airport (USW00024143), 4.2 mi WSW of the city center, 3,664 ft (335 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Great Falls International Airport (727750-24143), 4.3 mi WSW of the city center, 3,667 ft (338 ft higher than the city). Hourly observations, 1991-2020.