Helena weather in April: Helena, Montana: normal highs, lows, rain and records for April
Helena in April has a normal high of 57°F and a normal low of 32°F, a daily mean of 45°F, rising from 53°F on the 1st to 61°F by the 30th. Measurable precipitation falls on 9 days in a normal April, 1.02 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 14°C and low of 0°C, 26 mm of precipitation and 7 cm of snow in April.
- NOAA stationHelena Regional Airport
- Station IDUSW00024144
- Location46.61°N 111.96°W
- Elevation3,828 ft (1,167 m)
- From the center3 miles
- Population34,729
- Jan 32° 14°
- Feb 37° 17°
- Mar 48° 25°
- Apr 57° 32°
- May 66° 42°
- Jun 75° 49°
- Jul 86° 55°
- Aug 85° 53°
- Sep 73° 45°
- Oct 58° 34°
- Nov 43° 23°
- Dec 33° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Helena in April?
The normal high is 57°F and the normal low 32°F, for a daily mean of 44.5°F. April is 8.4°F warmer than March and 9.4°F cooler than May. April is the 7th warmest month of the year in Helena and the 5th wettest. Across the month the normal high rises 8°F, from 53°F on April 1 to 61°F on April 30. From one year to the next April's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 42°F and 47°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 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 53°F | 29°F | 26% | 9% |
| April 8 | 55°F | 31°F | 27% | 10% |
| April 15 | 56°F | 32°F | 28% | 11% |
| April 22 | 59°F | 34°F | 29% | 11% |
| April 30 | 61°F | 36°F | 31% | 13% |
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 | 53°F | 29°F | 26% | 9% | 12 h 50 min |
| April 2 | 53°F | 29°F | 26% | 9% | 12 h 50 min |
| April 3 | 53°F | 30°F | 26% | 10% | 12 h 50 min |
| April 4 | 54°F | 30°F | 26% | 10% | 13 h |
| April 5 | 54°F | 30°F | 26% | 10% | 13 h |
| April 6 | 54°F | 30°F | 27% | 10% | 13 h |
| April 7 | 54°F | 30°F | 27% | 10% | 13 h 10 min |
| April 8 | 55°F | 31°F | 27% | 10% | 13 h 10 min |
| April 9 | 55°F | 31°F | 27% | 10% | 13 h 10 min |
| April 10 | 55°F | 31°F | 27% | 10% | 13 h 20 min |
| April 11 | 55°F | 31°F | 27% | 11% | 13 h 20 min |
| April 12 | 56°F | 31°F | 28% | 11% | 13 h 20 min |
| April 13 | 56°F | 32°F | 28% | 11% | 13 h 20 min |
| April 14 | 56°F | 32°F | 28% | 11% | 13 h 30 min |
| April 15 | 56°F | 32°F | 28% | 11% | 13 h 30 min |
| April 16 | 57°F | 32°F | 28% | 11% | 13 h 30 min |
| April 17 | 57°F | 33°F | 28% | 11% | 13 h 40 min |
| April 18 | 57°F | 33°F | 28% | 11% | 13 h 40 min |
| April 19 | 58°F | 33°F | 29% | 11% | 13 h 40 min |
| April 20 | 58°F | 33°F | 29% | 11% | 13 h 50 min |
| April 21 | 58°F | 34°F | 29% | 11% | 13 h 50 min |
| April 22 | 59°F | 34°F | 29% | 11% | 13 h 50 min |
| April 23 | 59°F | 34°F | 29% | 12% | 14 h |
| April 24 | 59°F | 34°F | 29% | 12% | 14 h |
| April 25 | 60°F | 35°F | 29% | 12% | 14 h |
| April 26 | 60°F | 35°F | 30% | 12% | 14 h 10 min |
| April 27 | 60°F | 35°F | 30% | 12% | 14 h 10 min |
| April 28 | 61°F | 36°F | 30% | 12% | 14 h 10 min |
| April 29 | 61°F | 36°F | 30% | 12% | 14 h 10 min |
| April 30 | 61°F | 36°F | 31% | 13% | 14 h 20 min |
- Normal high
- 57°FApril average
- Normal low
- 32°FApril average
- Precipitation
- 1.02 inmonth total
- Days with precipitation
- 90.01 inch or more
- Snowfall
- 2.9 inmonth total
- Nights at 32°F or colder
- 15
- Daylight
- 12 h 50 min to 14 h 20 minApril 1 to April 30
- Days at 70°F or more
- 4
- Days at 80°F or more
- 1
- Sunshine
- 68%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024144; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Helena in April?
On a given April day the chance of 0.01 inch or more is 28% on average, highest around April 30 (31%). In all, 1.02 in falls on 9 days of a normal April.
In a normal April in Helena, 15 nights fall to freezing and snowfall averages 2.9 inches.
Snow falls on 2 days in a normal April, and an inch or more covers the ground on 1 day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024144.
How humid and windy is Helena in April?
At 3 p.m. the normal temperature is 58°F with 32% relative humidity and a dew point of 28°F; at 6 a.m. it is 39°F with 68% humidity. The wind averages 8.8 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 39°F | 29°F | 68% | 5.1 mph | 54% |
| 9 a.m. | 47°F | 30°F | 51% | 7.8 mph | 52% |
| noon | 55°F | 29°F | 36% | 11.0 mph | 51% |
| 3 p.m. | 58°F | 28°F | 32% | 13.1 mph | 46% |
| 6 p.m. | 56°F | 28°F | 34% | 12.5 mph | 56% |
| 9 p.m. | 48°F | 30°F | 49% | 8.3 mph | 62% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024144. 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 Helena?
The warmest April temperature on Helena's official record (since 1880) is 86°F, on April 25, 1910; the coldest is −10°F, on April 1, 1936. The wettest April brought 3.00 in (1975); the snowiest, 22.2 inches (1880).
The April mean against the 1991-2020 normal of 44.5°F: 2021 44.5°F (at normal), 2022 38.8°F (−5.7), 2023 44.1°F (−0.4), 2024 48.0°F (+3.5), 2025 46.3°F (+1.8), 2026 45.4°F (+0.9). 3 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 44.5°F | at normal | 1.00 in |
| 2022 | 38.8°F | −5.7°F | 0.74 in |
| 2023 | 44.1°F | −0.4°F | 1.04 in |
| 2024 | 48.0°F | +3.5°F | 0.77 in |
| 2025 | 46.3°F | +1.8°F | 0.27 in |
| 2026 | 45.4°F | +0.9°F | 1.42 in |
Source: records: ACIS, NWS threaded record HLNthr; recent months: ACIS, station USW00024144. Records and recent months use complete months only.
How does April in Helena 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; Helena's is 57°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.