Sumter weather in July: Sumter, South Carolina: normal highs, lows, rain and records for July
Sumter in July has a normal high of 90°F and a normal low of 70°F, a daily mean of 80°F, holding near 90°F all month. Measurable precipitation falls on 11 days in a normal July, 5.75 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 21°C, 146 mm of precipitation in July.
- NOAA stationSumter
- Station IDUSC00388440
- Location33.94°N 80.36°W
- Elevation177 ft (54 m)
- Population42,958
- Jan 55° 33°
- Feb 59° 35°
- Mar 66° 41°
- Apr 75° 50°
- May 81° 58°
- Jun 87° 66°
- Jul 90° 70°
- Aug 89° 68°
- Sep 83° 63°
- Oct 74° 51°
- Nov 65° 40°
- Dec 57° 35°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sumter in July?
The normal high is 90°F and the normal low 70°F, for a daily mean of 79.9°F. July is 3.3°F warmer than June and 1.4°F warmer than August. July is the warmest month of the year in Sumter and the wettest. From one year to the next July's mean temperature typically moves about 1.6°F either way (NOAA's standard deviation), so roughly two Julys in three average between 78°F and 82°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 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 90°F | 69°F | 37% | 26% |
| July 8 | 90°F | 70°F | 37% | 26% |
| July 15 | 90°F | 70°F | 38% | 26% |
| July 22 | 90°F | 70°F | 39% | 27% |
| July 31 | 90°F | 70°F | 39% | 27% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 10, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 90°F | 69°F | 37% | 26% | 14 h 20 min |
| July 2 | 90°F | 69°F | 37% | 26% | 14 h 20 min |
| July 3 | 90°F | 69°F | 37% | 25% | 14 h 20 min |
| July 4 | 90°F | 69°F | 37% | 25% | 14 h 20 min |
| July 5 | 90°F | 69°F | 37% | 25% | 14 h 20 min |
| July 6 | 90°F | 69°F | 37% | 26% | 14 h 20 min |
| July 7 | 90°F | 70°F | 37% | 26% | 14 h 20 min |
| July 8 | 90°F | 70°F | 37% | 26% | 14 h 20 min |
| July 9 | 90°F | 70°F | 37% | 26% | 14 h 20 min |
| July 10 | 90°F | 70°F | 37% | 26% | 14 h 20 min |
| July 11 | 90°F | 70°F | 37% | 26% | 14 h 20 min |
| July 12 | 90°F | 70°F | 37% | 26% | 14 h 20 min |
| July 13 | 90°F | 70°F | 37% | 26% | 14 h 10 min |
| July 14 | 90°F | 70°F | 38% | 26% | 14 h 10 min |
| July 15 | 90°F | 70°F | 38% | 26% | 14 h 10 min |
| July 16 | 90°F | 70°F | 38% | 26% | 14 h 10 min |
| July 17 | 90°F | 70°F | 38% | 26% | 14 h 10 min |
| July 18 | 90°F | 70°F | 38% | 26% | 14 h 10 min |
| July 19 | 90°F | 70°F | 38% | 27% | 14 h 10 min |
| July 20 | 90°F | 70°F | 38% | 27% | 14 h 10 min |
| July 21 | 90°F | 70°F | 38% | 27% | 14 h 10 min |
| July 22 | 90°F | 70°F | 39% | 27% | 14 h 10 min |
| July 23 | 90°F | 70°F | 39% | 27% | 14 h |
| July 24 | 90°F | 70°F | 39% | 27% | 14 h |
| July 25 | 90°F | 70°F | 39% | 27% | 14 h |
| July 26 | 90°F | 70°F | 39% | 27% | 14 h |
| July 27 | 90°F | 70°F | 39% | 27% | 14 h |
| July 28 | 90°F | 70°F | 39% | 27% | 14 h |
| July 29 | 90°F | 70°F | 39% | 27% | 14 h |
| July 30 | 90°F | 70°F | 39% | 27% | 13 h 50 min |
| July 31 | 90°F | 70°F | 39% | 27% | 13 h 50 min |
- Normal high
- 90°FJuly average
- Normal low
- 70°FJuly average
- Precipitation
- 5.75 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 20
- Daylight
- 14 h 20 min to 13 h 50 minJuly 1 to July 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 30
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00388440; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sumter in July?
On a given July day the chance of 0.01 inch or more is 38% on average, highest around July 30 (39%). In all, 5.75 in falls on 11 days of a normal July, 2 of them with an inch or more.
In a normal July in Sumter, 20 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00388440.
What are the records for July in Sumter?
The warmest July temperature on this station's record (since 1901) is 105°F, on July 7, 1904; the coldest is 52°F, on July 5, 1992. The wettest July brought 15.63 in (2013).
The July mean against the 1991-2020 normal of 79.9°F: 2021 78.7°F (−1.3), 2022 82.4°F (+2.5), 2023 82.9°F (+3.0), 2024 83.8°F (+3.9), 2025 84.4°F (+4.5), 2026 84.5°F (+4.6). 5 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 78.7°F | −1.3°F | 8.85 in |
| 2022 | 82.4°F | +2.5°F | 5.74 in |
| 2023 | 82.9°F | +3.0°F | 4.94 in |
| 2024 | 83.8°F | +3.9°F | 3.32 in |
| 2025 | 84.4°F | +4.5°F | – |
| 2026 | 84.5°F | +4.6°F | 2.54 in |
Source: records: ACIS, station USC00388440; recent months: ACIS, station USC00388440. Records and recent months use complete months only.
How does July in Sumter compare across South Carolina?
Across the 73 places PlainClimate covers in South Carolina, July normal highs run from 78°F in Caesars Head to 93°F in Aiken; Sumter's is 90°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.