Rock Springs weather in April: Rock Springs, Wyoming: normal highs, lows, rain and records for April
Rock Springs in April has a normal high of 53°F and a normal low of 30°F, a daily mean of 41°F, rising from 49°F on the 1st to 57°F by the 30th. Measurable precipitation falls on 8 days in a normal April, 0.91 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 12°C and low of −1°C, 23 mm of precipitation and 22 cm of snow in April.
- NOAA stationRock Springs Airport
- Station IDUSW00024027
- Location41.59°N 109.05°W
- Elevation6,741 ft (2,055 m)
- Population22,967
- Jan 30° 14°
- Feb 33° 16°
- Mar 44° 24°
- Apr 53° 30°
- May 63° 38°
- Jun 75° 47°
- Jul 84° 55°
- Aug 82° 53°
- Sep 71° 44°
- Oct 56° 33°
- Nov 41° 22°
- Dec 30° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Rock Springs in April?
The normal high is 53°F and the normal low 30°F, for a daily mean of 41.2°F. April is 7.2°F warmer than March and 9.6°F cooler than May. April is the 7th warmest month of the year in Rock Springs and the 2nd wettest, and the snowiest. Across the month the normal high rises 8°F, from 49°F on April 1 to 57°F on April 30. From one year to the next April's mean temperature typically moves about 2.9°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 38°F and 44°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 28%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 49°F | 27°F | 26% | 8% |
| April 8 | 51°F | 28°F | 27% | 9% |
| April 15 | 53°F | 29°F | 28% | 10% |
| April 22 | 54°F | 31°F | 28% | 10% |
| April 30 | 57°F | 33°F | 28% | 11% |
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 | 49°F | 27°F | 26% | 8% | 12 h 40 min |
| April 2 | 50°F | 28°F | 26% | 8% | 12 h 40 min |
| April 3 | 50°F | 28°F | 26% | 8% | 12 h 40 min |
| April 4 | 50°F | 28°F | 27% | 9% | 12 h 50 min |
| April 5 | 50°F | 28°F | 27% | 9% | 12 h 50 min |
| April 6 | 50°F | 28°F | 27% | 9% | 12 h 50 min |
| April 7 | 51°F | 28°F | 27% | 9% | 13 h |
| April 8 | 51°F | 28°F | 27% | 9% | 13 h |
| April 9 | 51°F | 28°F | 27% | 9% | 13 h |
| April 10 | 51°F | 29°F | 27% | 9% | 13 h |
| April 11 | 52°F | 29°F | 27% | 9% | 13 h 10 min |
| April 12 | 52°F | 29°F | 27% | 9% | 13 h 10 min |
| April 13 | 52°F | 29°F | 27% | 9% | 13 h 10 min |
| April 14 | 52°F | 29°F | 27% | 9% | 13 h 10 min |
| April 15 | 53°F | 29°F | 28% | 10% | 13 h 20 min |
| April 16 | 53°F | 30°F | 28% | 10% | 13 h 20 min |
| April 17 | 53°F | 30°F | 28% | 10% | 13 h 20 min |
| April 18 | 53°F | 30°F | 28% | 10% | 13 h 30 min |
| April 19 | 54°F | 30°F | 28% | 10% | 13 h 30 min |
| April 20 | 54°F | 30°F | 28% | 10% | 13 h 30 min |
| April 21 | 54°F | 31°F | 28% | 10% | 13 h 30 min |
| April 22 | 54°F | 31°F | 28% | 10% | 13 h 40 min |
| April 23 | 55°F | 31°F | 28% | 10% | 13 h 40 min |
| April 24 | 55°F | 31°F | 28% | 10% | 13 h 40 min |
| April 25 | 55°F | 32°F | 28% | 11% | 13 h 40 min |
| April 26 | 56°F | 32°F | 28% | 11% | 13 h 50 min |
| April 27 | 56°F | 32°F | 28% | 11% | 13 h 50 min |
| April 28 | 56°F | 32°F | 28% | 11% | 13 h 50 min |
| April 29 | 57°F | 33°F | 28% | 11% | 13 h 50 min |
| April 30 | 57°F | 33°F | 28% | 11% | 14 h |
- Normal high
- 53°FApril average
- Normal low
- 30°FApril average
- Precipitation
- 0.91 inmonth total
- Days with precipitation
- 80.01 inch or more
- Snowfall
- 8.8 inmonth total
- Nights at 32°F or colder
- 21
- Daylight
- 12 h 40 min to 14 hApril 1 to April 30
- Days at 70°F or more
- 2
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024027; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Rock Springs in April?
On a given April day the chance of 0.01 inch or more is 27% on average, highest around April 29 (28%). In all, 0.91 in falls on 8 days of a normal April.
In a normal April in Rock Springs, 21 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 8.8 inches.
Snow falls on 6 days in a normal April, and an inch or more covers the ground on 2 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024027.
How humid and windy is Rock Springs in April?
At 3 p.m. the normal temperature is 55°F with 28% relative humidity and a dew point of 22°F; at 6 a.m. it is 36°F with 63% humidity. The wind averages 12.5 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. | 36°F | 24°F | 63% | 9.1 mph | 67% |
| 9 a.m. | 45°F | 26°F | 46% | 12.2 mph | 61% |
| noon | 52°F | 23°F | 32% | 15.6 mph | 52% |
| 3 p.m. | 55°F | 22°F | 28% | 17.1 mph | 51% |
| 6 p.m. | 51°F | 23°F | 32% | 15.7 mph | 53% |
| 9 p.m. | 44°F | 24°F | 46% | 11.2 mph | 62% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024027. 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 Rock Springs?
The warmest April temperature on this station's record (since 1948) is 79°F, on April 20, 1989; the coldest is 2°F, on April 2, 1975. The wettest April brought 2.74 in (1999); the snowiest, 21.5 inches (1999).
The April mean against the 1991-2020 normal of 41.2°F: 2021 39.7°F (−1.5), 2022 39.4°F (−1.8), 2023 36.1°F (−5.1), 2024 43.3°F (+2.1), 2025 44.1°F (+2.9), 2026 43.1°F (+1.9). 3 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 39.7°F | −1.5°F | 0.07 in |
| 2022 | 39.4°F | −1.8°F | 0.39 in |
| 2023 | 36.1°F | −5.1°F | 0.16 in |
| 2024 | 43.3°F | +2.1°F | 0.44 in |
| 2025 | 44.1°F | +2.9°F | 0.48 in |
| 2026 | 43.1°F | +1.9°F | 0.59 in |
Source: records: ACIS, station USW00024027; recent months: ACIS, station USW00024027. Records and recent months use complete months only.
How does April in Rock Springs compare across Wyoming?
Across the 71 places PlainClimate covers in Wyoming, April normal highs run from 46°F in Sundance to 63°F in Basin; Rock Springs's is 53°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.