Rockville weather in April: Rockville, Maryland: normal highs, lows, rain and records for April
Rockville in April has a normal high of 66°F and a normal low of 46°F, a daily mean of 56°F, rising from 60°F on the 1st to 71°F by the 30th. Measurable precipitation falls on 10 days in a normal April, 3.23 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 8°C, 82 mm of precipitation in April.
- NOAA stationRockville (1 mi NE)
- Station IDUSC00187705
- Location39.10°N 77.15°W
- Elevation440 ft (134 m)
- From the center1 miles
- Population68,417
- Jan 42° 27°
- Feb 45° 28°
- Mar 54° 36°
- Apr 66° 46°
- May 74° 55°
- Jun 82° 64°
- Jul 87° 69°
- Aug 85° 67°
- Sep 78° 60°
- Oct 66° 48°
- Nov 56° 38°
- Dec 46° 31°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Rockville in April?
The normal high is 66°F and the normal low 46°F, for a daily mean of 55.7°F. April is 10.9°F warmer than March and 8.9°F cooler than May. April is the 7th warmest month of the year in Rockville and the 9th wettest. Across the month the normal high rises 11°F, from 60°F on April 1 to 71°F on April 30. From one year to the next April's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 54°F and 58°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 60°F | 41°F | 36% | 22% |
| April 8 | 63°F | 43°F | 36% | 22% |
| April 15 | 66°F | 45°F | 36% | 22% |
| April 22 | 69°F | 48°F | 36% | 22% |
| April 30 | 71°F | 50°F | 36% | 22% |
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 | 60°F | 41°F | 36% | 22% | 12 h 40 min |
| April 2 | 61°F | 41°F | 35% | 22% | 12 h 40 min |
| April 3 | 61°F | 41°F | 35% | 22% | 12 h 40 min |
| April 4 | 61°F | 42°F | 35% | 22% | 12 h 40 min |
| April 5 | 62°F | 42°F | 35% | 22% | 12 h 50 min |
| April 6 | 62°F | 42°F | 35% | 22% | 12 h 50 min |
| April 7 | 63°F | 43°F | 35% | 22% | 12 h 50 min |
| April 8 | 63°F | 43°F | 36% | 22% | 12 h 50 min |
| April 9 | 64°F | 43°F | 36% | 22% | 13 h |
| April 10 | 64°F | 44°F | 36% | 22% | 13 h |
| April 11 | 64°F | 44°F | 36% | 22% | 13 h |
| April 12 | 65°F | 44°F | 36% | 22% | 13 h |
| April 13 | 65°F | 45°F | 36% | 22% | 13 h 10 min |
| April 14 | 66°F | 45°F | 36% | 22% | 13 h 10 min |
| April 15 | 66°F | 45°F | 36% | 22% | 13 h 10 min |
| April 16 | 66°F | 46°F | 36% | 22% | 13 h 10 min |
| April 17 | 67°F | 46°F | 36% | 22% | 13 h 20 min |
| April 18 | 67°F | 47°F | 35% | 22% | 13 h 20 min |
| April 19 | 68°F | 47°F | 35% | 22% | 13 h 20 min |
| April 20 | 68°F | 47°F | 36% | 22% | 13 h 20 min |
| April 21 | 68°F | 48°F | 36% | 22% | 13 h 30 min |
| April 22 | 69°F | 48°F | 36% | 22% | 13 h 30 min |
| April 23 | 69°F | 48°F | 36% | 22% | 13 h 30 min |
| April 24 | 69°F | 49°F | 36% | 21% | 13 h 30 min |
| April 25 | 70°F | 49°F | 36% | 21% | 13 h 30 min |
| April 26 | 70°F | 49°F | 36% | 21% | 13 h 40 min |
| April 27 | 70°F | 50°F | 36% | 21% | 13 h 40 min |
| April 28 | 70°F | 50°F | 36% | 21% | 13 h 40 min |
| April 29 | 71°F | 50°F | 36% | 22% | 13 h 40 min |
| April 30 | 71°F | 50°F | 36% | 22% | 13 h 50 min |
- Normal high
- 66°FApril average
- Normal low
- 46°FApril average
- Precipitation
- 3.23 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 2
- Daylight
- 12 h 40 min to 13 h 50 minApril 1 to April 30
- Days at 70°F or more
- 11
- Days at 80°F or more
- 3
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00187705; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Rockville in April?
On a given April day the chance of 0.01 inch or more is 36% on average, highest around April 30 (36%). In all, 3.23 in falls on 10 days of a normal April, 1 of them with an inch or more.
In a normal April in Rockville, 2 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00187705.
What are the records for April in Rockville?
The warmest April temperature on this station's record (since 1907) is 100°F, on April 27, 1915; the coldest is 18°F, on April 1, 1969. The wettest April brought 7.62 in (1973); the snowiest, 4.0 inches (1916).
Source: records: ACIS, station USC00187705. Records and recent months use complete months only.
How does April in Rockville compare across Maryland?
Across the 26 places PlainClimate covers in Maryland, April normal highs run from 59°F in Frostburg to 69°F in Snow Hill; Rockville's is 66°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.