Hagerstown weather in September: Hagerstown, Maryland: normal highs, lows, rain and records for September
Hagerstown in September has a normal high of 78°F and a normal low of 59°F, a daily mean of 68°F, falling from 82°F on the 1st to 72°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 3.83 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 25°C and low of 15°C, 97 mm of precipitation in September.
- NOAA stationHagerstown Regional Airport
- Station IDUSW00093706
- Location39.71°N 77.73°W
- Elevation698 ft (213 m)
- From the center5 miles
- Population43,909
- Jan 41° 25°
- Feb 44° 27°
- Mar 53° 34°
- Apr 65° 44°
- May 74° 55°
- Jun 83° 64°
- Jul 87° 68°
- Aug 85° 66°
- Sep 78° 59°
- Oct 66° 47°
- Nov 54° 37°
- Dec 44° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Hagerstown in September?
The normal high is 78°F and the normal low 59°F, for a daily mean of 68.4°F. September is 6.9°F cooler than August and 11.7°F warmer than October. September is the 4th warmest month of the year in Hagerstown and the wettest. Across the month the normal high falls 10°F, from 82°F on September 1 to 72°F on September 30. From one year to the next September's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 66°F and 71°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 |
|---|---|---|---|---|
| September 1 | 82°F | 63°F | 31% | 19% |
| September 8 | 81°F | 61°F | 31% | 20% |
| September 15 | 78°F | 59°F | 30% | 19% |
| September 22 | 76°F | 57°F | 30% | 19% |
| September 30 | 72°F | 54°F | 31% | 18% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 82°F | 63°F | 31% | 19% | 13 h 10 min |
| September 2 | 82°F | 63°F | 31% | 20% | 13 h |
| September 3 | 82°F | 63°F | 31% | 20% | 13 h |
| September 4 | 82°F | 63°F | 31% | 20% | 13 h |
| September 5 | 81°F | 62°F | 31% | 20% | 13 h |
| September 6 | 81°F | 62°F | 31% | 20% | 12 h 50 min |
| September 7 | 81°F | 62°F | 31% | 20% | 12 h 50 min |
| September 8 | 81°F | 61°F | 31% | 20% | 12 h 50 min |
| September 9 | 80°F | 61°F | 31% | 19% | 12 h 50 min |
| September 10 | 80°F | 61°F | 31% | 19% | 12 h 40 min |
| September 11 | 80°F | 61°F | 31% | 19% | 12 h 40 min |
| September 12 | 79°F | 60°F | 30% | 19% | 12 h 40 min |
| September 13 | 79°F | 60°F | 30% | 19% | 12 h 40 min |
| September 14 | 79°F | 60°F | 30% | 19% | 12 h 30 min |
| September 15 | 78°F | 59°F | 30% | 19% | 12 h 30 min |
| September 16 | 78°F | 59°F | 30% | 19% | 12 h 30 min |
| September 17 | 78°F | 59°F | 30% | 19% | 12 h 30 min |
| September 18 | 77°F | 58°F | 30% | 19% | 12 h 20 min |
| September 19 | 77°F | 58°F | 30% | 19% | 12 h 20 min |
| September 20 | 76°F | 58°F | 30% | 19% | 12 h 20 min |
| September 21 | 76°F | 57°F | 30% | 19% | 12 h 20 min |
| September 22 | 76°F | 57°F | 30% | 19% | 12 h 10 min |
| September 23 | 75°F | 57°F | 30% | 18% | 12 h 10 min |
| September 24 | 75°F | 56°F | 30% | 18% | 12 h 10 min |
| September 25 | 74°F | 56°F | 30% | 18% | 12 h 10 min |
| September 26 | 74°F | 55°F | 31% | 18% | 12 h |
| September 27 | 74°F | 55°F | 31% | 18% | 12 h |
| September 28 | 73°F | 55°F | 31% | 18% | 12 h |
| September 29 | 73°F | 54°F | 31% | 18% | 11 h 50 min |
| September 30 | 72°F | 54°F | 31% | 18% | 11 h 50 min |
- Normal high
- 78°FSeptember average
- Normal low
- 59°FSeptember average
- Precipitation
- 3.83 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 25
- Days at 80°F or more
- 12
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093706; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Hagerstown in September?
On a given September day the chance of 0.01 inch or more is 30% on average, highest around September 1 (31%). In all, 3.83 in falls on 10 days of a normal September, 1 of them with an inch or more.
In a normal September in Hagerstown, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093706.
What are the records for September in Hagerstown?
The warmest September temperature on Hagerstown's official record (since 1899) is 101°F, on September 1, 1902; the coldest is 25°F, on September 26, 1943. The wettest September brought 10.54 in (1996).
The September mean against the 1991-2020 normal of 68.4°F: 2021 69.3°F (+0.9), 2022 68.0°F (−0.4), 2023 68.5°F (+0.1), 2024 68.0°F (−0.4), 2025 70.0°F (+1.6), 2026 69.3°F (+0.9). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.3°F | +0.9°F | 6.25 in |
| 2022 | 68.0°F | −0.4°F | 4.06 in |
| 2023 | 68.5°F | +0.1°F | 3.28 in |
| 2024 | 68.0°F | −0.4°F | 1.45 in |
| 2025 | 70.0°F | +1.6°F | 1.78 in |
| 2026 | 69.3°F | +0.9°F | 2.61 in |
Source: records: ACIS, NWS threaded record HGRthr; recent months: ACIS, station USW00093706. Records and recent months use complete months only.
How does September in Hagerstown compare across Maryland?
Across the 26 places PlainClimate covers in Maryland, September normal highs run from 72°F in Frostburg to 82°F in Snow Hill; Hagerstown's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Hagerstown in August85°F by day, 66°F at night
- Hagerstown in October66°F by day, 47°F at night
- Hagerstown through the yearEvery month, frost dates, records and recent years
- Maryland in SeptemberThe statewide normal and the warmest and coolest places
- Snow Hill: Maryland's warmest Septembernormal high 82°F