Rockville weather in October: Rockville, Maryland: normal highs, lows, rain and records for October
Rockville in October has a normal high of 66°F and a normal low of 48°F, a daily mean of 57°F, falling from 71°F on the 1st to 61°F by the 31st. Measurable precipitation falls on 8 days in a normal October, 3.52 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 9°C, 89 mm of precipitation in October.
- 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 October?
The normal high is 66°F and the normal low 48°F, for a daily mean of 57.0°F. October is 11.7°F cooler than September and 10.1°F warmer than November. October is the 6th warmest month of the year in Rockville and the 6th wettest. Across the month the normal high falls 10°F, from 71°F on October 1 to 61°F on October 31. From one year to the next October's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 55°F and 59°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 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 71°F | 54°F | 30% | 17% |
| October 8 | 69°F | 51°F | 28% | 17% |
| October 15 | 66°F | 48°F | 27% | 17% |
| October 22 | 64°F | 46°F | 26% | 17% |
| October 31 | 61°F | 43°F | 26% | 17% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 71°F | 54°F | 30% | 17% | 11 h 50 min |
| October 2 | 71°F | 53°F | 29% | 17% | 11 h 50 min |
| October 3 | 71°F | 53°F | 29% | 17% | 11 h 40 min |
| October 4 | 70°F | 53°F | 29% | 17% | 11 h 40 min |
| October 5 | 70°F | 52°F | 29% | 17% | 11 h 40 min |
| October 6 | 69°F | 52°F | 29% | 17% | 11 h 40 min |
| October 7 | 69°F | 51°F | 28% | 17% | 11 h 30 min |
| October 8 | 69°F | 51°F | 28% | 17% | 11 h 30 min |
| October 9 | 68°F | 51°F | 28% | 17% | 11 h 30 min |
| October 10 | 68°F | 50°F | 28% | 17% | 11 h 30 min |
| October 11 | 68°F | 50°F | 28% | 17% | 11 h 20 min |
| October 12 | 67°F | 49°F | 28% | 17% | 11 h 20 min |
| October 13 | 67°F | 49°F | 28% | 17% | 11 h 20 min |
| October 14 | 66°F | 49°F | 28% | 17% | 11 h 20 min |
| October 15 | 66°F | 48°F | 27% | 17% | 11 h 10 min |
| October 16 | 66°F | 48°F | 27% | 17% | 11 h 10 min |
| October 17 | 65°F | 47°F | 27% | 17% | 11 h 10 min |
| October 18 | 65°F | 47°F | 27% | 17% | 11 h 10 min |
| October 19 | 65°F | 47°F | 27% | 17% | 11 h |
| October 20 | 64°F | 46°F | 27% | 17% | 11 h |
| October 21 | 64°F | 46°F | 27% | 17% | 11 h |
| October 22 | 64°F | 46°F | 26% | 17% | 11 h |
| October 23 | 64°F | 45°F | 26% | 17% | 11 h |
| October 24 | 63°F | 45°F | 26% | 17% | 10 h 50 min |
| October 25 | 63°F | 45°F | 26% | 17% | 10 h 50 min |
| October 26 | 63°F | 44°F | 26% | 17% | 10 h 50 min |
| October 27 | 62°F | 44°F | 26% | 17% | 10 h 50 min |
| October 28 | 62°F | 44°F | 26% | 17% | 10 h 40 min |
| October 29 | 62°F | 43°F | 26% | 17% | 10 h 40 min |
| October 30 | 61°F | 43°F | 26% | 17% | 10 h 40 min |
| October 31 | 61°F | 43°F | 26% | 17% | 10 h 40 min |
- Normal high
- 66°FOctober average
- Normal low
- 48°FOctober average
- Precipitation
- 3.52 inmonth total
- Days with precipitation
- 80.01 inch or more
- Daylight
- 11 h 50 min to 10 h 40 minOctober 1 to October 31
- Days at 70°F or more
- 10
- Days at 80°F or more
- 2
- Sunshine
- 72%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 October?
On a given October day the chance of 0.01 inch or more is 27% on average, highest around October 1 (30%). In all, 3.52 in falls on 8 days of a normal October, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00187705.
What are the records for October in Rockville?
The warmest October temperature on this station's record (since 1907) is 93°F, on October 11, 1919; the coldest is 20°F, on October 21, 1917. The wettest October brought 8.41 in (2005).
Source: records: ACIS, station USC00187705. Records and recent months use complete months only.
How does October in Rockville compare across Maryland?
Across the 26 places PlainClimate covers in Maryland, October normal highs run from 60°F in Frostburg to 72°F in Snow Hill; Rockville's is 66°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.