Danbury weather in August: Danbury, Connecticut: normal highs, lows, rain and records for August
Danbury in August has a normal high of 80°F and a normal low of 60°F, a daily mean of 70°F, falling from 82°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 14 days in a normal August, 4.62 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 16°C, 117 mm of precipitation in August.
- NOAA stationDanbury Municipal Airport
- Station IDUSW00054734
- Location41.37°N 73.48°W
- Elevation457 ft (139 m)
- From the center2 miles
- Population88,692
- Jan 36° 18°
- Feb 39° 20°
- Mar 47° 27°
- Apr 59° 37°
- May 69° 46°
- Jun 78° 56°
- Jul 82° 62°
- Aug 80° 60°
- Sep 74° 52°
- Oct 62° 41°
- Nov 51° 31°
- Dec 41° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Danbury in August?
The normal high is 80°F and the normal low 60°F, for a daily mean of 70.2°F. August is 1.8°F cooler than July and 7.3°F warmer than September. August is the 2nd warmest month of the year in Danbury and the 2nd wettest. Across the month the normal high falls 4°F, from 82°F on August 1 to 78°F on August 31. From one year to the next August's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 68°F and 72°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 45%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 82°F | 62°F | 44% | 24% |
| August 8 | 81°F | 61°F | 45% | 24% |
| August 15 | 81°F | 60°F | 44% | 23% |
| August 22 | 80°F | 59°F | 44% | 21% |
| August 31 | 78°F | 57°F | 43% | 19% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 82°F | 62°F | 44% | 24% | 14 h 20 min |
| August 2 | 82°F | 62°F | 45% | 24% | 14 h 20 min |
| August 3 | 82°F | 62°F | 45% | 24% | 14 h 20 min |
| August 4 | 82°F | 62°F | 45% | 24% | 14 h 20 min |
| August 5 | 82°F | 62°F | 45% | 24% | 14 h 20 min |
| August 6 | 82°F | 62°F | 45% | 24% | 14 h 10 min |
| August 7 | 82°F | 61°F | 45% | 24% | 14 h 10 min |
| August 8 | 81°F | 61°F | 45% | 24% | 14 h 10 min |
| August 9 | 81°F | 61°F | 45% | 24% | 14 h 10 min |
| August 10 | 81°F | 61°F | 45% | 23% | 14 h |
| August 11 | 81°F | 61°F | 45% | 23% | 14 h |
| August 12 | 81°F | 61°F | 45% | 23% | 14 h |
| August 13 | 81°F | 61°F | 45% | 23% | 14 h |
| August 14 | 81°F | 61°F | 45% | 23% | 14 h |
| August 15 | 81°F | 60°F | 44% | 23% | 13 h 50 min |
| August 16 | 81°F | 60°F | 44% | 22% | 13 h 50 min |
| August 17 | 80°F | 60°F | 44% | 22% | 13 h 50 min |
| August 18 | 80°F | 60°F | 44% | 22% | 13 h 50 min |
| August 19 | 80°F | 60°F | 44% | 21% | 13 h 40 min |
| August 20 | 80°F | 60°F | 44% | 21% | 13 h 40 min |
| August 21 | 80°F | 59°F | 44% | 21% | 13 h 40 min |
| August 22 | 80°F | 59°F | 44% | 21% | 13 h 40 min |
| August 23 | 80°F | 59°F | 43% | 21% | 13 h 30 min |
| August 24 | 80°F | 59°F | 43% | 20% | 13 h 30 min |
| August 25 | 79°F | 59°F | 43% | 20% | 13 h 30 min |
| August 26 | 79°F | 58°F | 43% | 20% | 13 h 30 min |
| August 27 | 79°F | 58°F | 43% | 20% | 13 h 20 min |
| August 28 | 79°F | 58°F | 43% | 20% | 13 h 20 min |
| August 29 | 79°F | 58°F | 43% | 19% | 13 h 20 min |
| August 30 | 78°F | 57°F | 43% | 19% | 13 h 20 min |
| August 31 | 78°F | 57°F | 43% | 19% | 13 h 10 min |
- Normal high
- 80°FAugust average
- Normal low
- 60°FAugust average
- Precipitation
- 4.62 inmonth total
- Days with precipitation
- 140.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 20
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00054734; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Danbury in August?
On a given August day the chance of 0.01 inch or more is 44% on average, highest around August 7 (45%). In all, 4.62 in falls on 14 days of a normal August, 1 of them with an inch or more.
In a normal August in Danbury, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00054734.
What are the records for August in Danbury?
The warmest August temperature on this station's record (since 1998) is 96°F, on August 13, 2005; the coldest is 43°F, on August 21, 2000. The wettest August brought 13.41 in (2011).
The August mean against the 1991-2020 normal of 70.2°F: 2021 74.8°F (+4.6), 2022 76.8°F (+6.6), 2023 70.8°F (+0.6), 2024 71.7°F (+1.5), 2025 70.2°F (at normal). 4 of 5 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 74.8°F | +4.6°F | 5.04 in |
| 2022 | 76.8°F | +6.6°F | 1.85 in |
| 2023 | 70.8°F | +0.6°F | 4.64 in |
| 2024 | 71.7°F | +1.5°F | 7.98 in |
| 2025 | 70.2°F | at normal | – |
Source: records: ACIS, station USW00054734; recent months: ACIS, station USW00054734. Records and recent months use complete months only.
How does August in Danbury compare across Connecticut?
Across the 13 places PlainClimate covers in Connecticut, August normal highs run from 76°F in Norfolk to 83°F in Hartford; Danbury's is 80°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.