Great Falls weather in April: Great Falls, Montana: normal highs, lows, rain and records for April
Great Falls in April has a normal high of 55°F and a normal low of 30°F, a daily mean of 42°F, rising from 51°F on the 1st to 59°F by the 30th. Measurable precipitation falls on 10 days in a normal April, 1.73 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of −1°C, 44 mm of precipitation and 24 cm of snow in April.
- NOAA stationGreat Falls Airport
- Station IDUSW00024143
- Location47.47°N 111.38°W
- Elevation3,664 ft (1,117 m)
- From the center4 miles
- Population60,013
- Jan 35° 15°
- Feb 37° 15°
- Mar 46° 22°
- Apr 55° 30°
- May 65° 38°
- Jun 73° 46°
- Jul 84° 51°
- Aug 83° 50°
- Sep 72° 43°
- Oct 57° 33°
- Nov 44° 24°
- Dec 36° 16°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Great Falls in April?
The normal high is 55°F and the normal low 30°F, for a daily mean of 42.4°F. April is 8.3°F warmer than March and 9.1°F cooler than May. April is the 7th warmest month of the year in Great Falls and the 3rd wettest. Across the month the normal high rises 8°F, from 51°F on April 1 to 59°F on April 30. From one year to the next April's mean temperature typically moves about 3.0°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 39°F and 45°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 51°F | 27°F | 29% | 12% |
| April 8 | 53°F | 29°F | 31% | 14% |
| April 15 | 55°F | 30°F | 32% | 15% |
| April 22 | 57°F | 31°F | 33% | 15% |
| April 30 | 59°F | 33°F | 34% | 16% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 51°F | 27°F | 29% | 12% | 12 h 50 min |
| April 2 | 51°F | 27°F | 30% | 12% | 12 h 50 min |
| April 3 | 52°F | 28°F | 30% | 13% | 12 h 50 min |
| April 4 | 52°F | 28°F | 30% | 13% | 13 h |
| April 5 | 52°F | 28°F | 30% | 13% | 13 h |
| April 6 | 52°F | 28°F | 31% | 13% | 13 h |
| April 7 | 53°F | 28°F | 31% | 14% | 13 h 10 min |
| April 8 | 53°F | 29°F | 31% | 14% | 13 h 10 min |
| April 9 | 53°F | 29°F | 31% | 14% | 13 h 10 min |
| April 10 | 53°F | 29°F | 32% | 14% | 13 h 20 min |
| April 11 | 54°F | 29°F | 32% | 14% | 13 h 20 min |
| April 12 | 54°F | 29°F | 32% | 14% | 13 h 20 min |
| April 13 | 54°F | 29°F | 32% | 15% | 13 h 30 min |
| April 14 | 54°F | 30°F | 32% | 15% | 13 h 30 min |
| April 15 | 55°F | 30°F | 32% | 15% | 13 h 30 min |
| April 16 | 55°F | 30°F | 32% | 15% | 13 h 40 min |
| April 17 | 55°F | 30°F | 33% | 15% | 13 h 40 min |
| April 18 | 55°F | 30°F | 33% | 15% | 13 h 40 min |
| April 19 | 56°F | 30°F | 33% | 15% | 13 h 50 min |
| April 20 | 56°F | 31°F | 33% | 15% | 13 h 50 min |
| April 21 | 56°F | 31°F | 33% | 15% | 13 h 50 min |
| April 22 | 57°F | 31°F | 33% | 15% | 14 h |
| April 23 | 57°F | 31°F | 33% | 15% | 14 h |
| April 24 | 57°F | 32°F | 33% | 15% | 14 h |
| April 25 | 58°F | 32°F | 33% | 15% | 14 h 10 min |
| April 26 | 58°F | 32°F | 33% | 16% | 14 h 10 min |
| April 27 | 58°F | 32°F | 33% | 16% | 14 h 10 min |
| April 28 | 59°F | 33°F | 33% | 16% | 14 h 20 min |
| April 29 | 59°F | 33°F | 34% | 16% | 14 h 20 min |
| April 30 | 59°F | 33°F | 34% | 16% | 14 h 20 min |
- Normal high
- 55°FApril average
- Normal low
- 30°FApril average
- Precipitation
- 1.73 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 9.4 inmonth total
- Nights at 32°F or colder
- 18
- Daylight
- 12 h 50 min to 14 h 20 minApril 1 to April 30
- Days at 70°F or more
- 3
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024143; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Great Falls in April?
On a given April day the chance of 0.01 inch or more is 32% on average, highest around April 30 (34%). In all, 1.73 in falls on 10 days of a normal April.
In a normal April in Great Falls, 18 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 9.4 inches.
Snow falls on 5 days in a normal April, and an inch or more covers the ground on 3 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024143.
How humid and windy is Great Falls in April?
At 3 p.m. the normal temperature is 57°F with 34% relative humidity and a dew point of 29°F; at 6 a.m. it is 38°F with 70% humidity. The wind averages 11.2 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 38°F | 30°F | 70% | 9.5 mph | 53% |
| 9 a.m. | 48°F | 31°F | 50% | 12.5 mph | 57% |
| noon | 54°F | 29°F | 39% | 12.8 mph | 48% |
| 3 p.m. | 57°F | 29°F | 34% | 13.4 mph | 44% |
| 6 p.m. | 54°F | 29°F | 37% | 12.9 mph | 49% |
| 9 p.m. | 45°F | 30°F | 55% | 9.8 mph | 59% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024143. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in Great Falls?
The warmest April temperature on Great Falls's official record (since 1891) is 89°F, on April 20, 1980; the coldest is −10°F, on April 2, 1936. The wettest April brought 4.63 in (1975); the snowiest, 35.4 inches (1967).
The April mean against the 1991-2020 normal of 42.4°F: 2021 41.5°F (−0.9), 2022 36.9°F (−5.5), 2023 41.3°F (−1.1), 2024 44.4°F (+2.0), 2025 43.6°F (+1.2), 2026 42.6°F (+0.2). 3 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 41.5°F | −0.9°F | 1.10 in |
| 2022 | 36.9°F | −5.5°F | 1.72 in |
| 2023 | 41.3°F | −1.1°F | 2.38 in |
| 2024 | 44.4°F | +2.0°F | 1.74 in |
| 2025 | 43.6°F | +1.2°F | 0.51 in |
| 2026 | 42.6°F | +0.2°F | 1.88 in |
Source: records: ACIS, NWS threaded record GTFthr; recent months: ACIS, station USW00024143. Records and recent months use complete months only.
How does April in Great Falls compare across Montana?
Across the 141 places PlainClimate covers in Montana, April normal highs run from 43°F in Cooke City to 62°F in Hardin; Great Falls's is 55°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.