Watertown weather in August: Watertown, New York: normal highs, lows, rain and records for August
Watertown in August has a normal high of 78°F and a normal low of 57°F, a daily mean of 68°F, falling from 79°F on the 1st to 76°F by the 31st. Measurable precipitation falls on 11 days in a normal August, 3.20 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 14°C, 81 mm of precipitation in August.
- NOAA stationWatertown International Airport
- Station IDUSW00094790
- Location43.99°N 76.02°W
- Elevation318 ft (97 m)
- From the center6 miles
- Population24,038
- Jan 30° 10°
- Feb 31° 11°
- Mar 40° 21°
- Apr 54° 33°
- May 66° 44°
- Jun 75° 53°
- Jul 79° 59°
- Aug 78° 57°
- Sep 71° 49°
- Oct 58° 39°
- Nov 47° 30°
- Dec 36° 19°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Watertown in August?
The normal high is 78°F and the normal low 57°F, for a daily mean of 67.5°F. August is 1.5°F cooler than July and 7.5°F warmer than September. August is the 2nd warmest month of the year in Watertown and the 4th wettest. Across the month the normal high falls 3°F, from 79°F on August 1 to 76°F on August 31. From one year to the next August's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 66°F and 70°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 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 79°F | 59°F | 34% | 21% |
| August 8 | 79°F | 58°F | 34% | 21% |
| August 15 | 79°F | 57°F | 34% | 20% |
| August 22 | 78°F | 56°F | 33% | 20% |
| August 31 | 76°F | 54°F | 33% | 20% |
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 | 79°F | 59°F | 34% | 21% | 14 h 40 min |
| August 2 | 79°F | 59°F | 34% | 21% | 14 h 40 min |
| August 3 | 79°F | 59°F | 34% | 21% | 14 h 30 min |
| August 4 | 79°F | 59°F | 34% | 21% | 14 h 30 min |
| August 5 | 79°F | 59°F | 34% | 21% | 14 h 30 min |
| August 6 | 79°F | 59°F | 34% | 21% | 14 h 30 min |
| August 7 | 79°F | 58°F | 34% | 21% | 14 h 20 min |
| August 8 | 79°F | 58°F | 34% | 21% | 14 h 20 min |
| August 9 | 79°F | 58°F | 34% | 21% | 14 h 20 min |
| August 10 | 79°F | 58°F | 34% | 20% | 14 h 20 min |
| August 11 | 79°F | 58°F | 34% | 20% | 14 h 10 min |
| August 12 | 79°F | 58°F | 34% | 20% | 14 h 10 min |
| August 13 | 79°F | 58°F | 34% | 20% | 14 h 10 min |
| August 14 | 79°F | 57°F | 34% | 20% | 14 h 10 min |
| August 15 | 79°F | 57°F | 34% | 20% | 14 h |
| August 16 | 78°F | 57°F | 34% | 20% | 14 h |
| August 17 | 78°F | 57°F | 34% | 20% | 14 h |
| August 18 | 78°F | 57°F | 34% | 20% | 14 h |
| August 19 | 78°F | 56°F | 34% | 20% | 13 h 50 min |
| August 20 | 78°F | 56°F | 34% | 20% | 13 h 50 min |
| August 21 | 78°F | 56°F | 34% | 20% | 13 h 50 min |
| August 22 | 78°F | 56°F | 33% | 20% | 13 h 40 min |
| August 23 | 78°F | 56°F | 33% | 20% | 13 h 40 min |
| August 24 | 78°F | 55°F | 33% | 20% | 13 h 40 min |
| August 25 | 77°F | 55°F | 33% | 20% | 13 h 40 min |
| August 26 | 77°F | 55°F | 33% | 20% | 13 h 30 min |
| August 27 | 77°F | 55°F | 33% | 20% | 13 h 30 min |
| August 28 | 77°F | 54°F | 33% | 20% | 13 h 30 min |
| August 29 | 77°F | 54°F | 33% | 20% | 13 h 30 min |
| August 30 | 77°F | 54°F | 33% | 20% | 13 h 20 min |
| August 31 | 76°F | 54°F | 33% | 20% | 13 h 20 min |
- Normal high
- 78°FAugust average
- Normal low
- 57°FAugust average
- Precipitation
- 3.20 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 14 h 40 min to 13 h 20 minAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 14
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094790; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Watertown in August?
On a given August day the chance of 0.01 inch or more is 34% on average, highest around August 1 (34%). In all, 3.20 in falls on 11 days of a normal August, 1 of them with an inch or more.
In a normal August in Watertown, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094790.
How humid and windy is Watertown in August?
At 3 p.m. the normal temperature is 75°F with 57% relative humidity and a dew point of 58°F; at 6 a.m. it is 58°F with 89% humidity. The wind averages 6.4 mph, most often from the west-southwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 58°F | 55°F | 89% | 4.4 mph | – |
| 9 a.m. | 69°F | 59°F | 70% | 7.5 mph | – |
| noon | 74°F | 59°F | 59% | 9.4 mph | – |
| 3 p.m. | 75°F | 58°F | 57% | 9.9 mph | – |
| 6 p.m. | 71°F | 59°F | 66% | 6.4 mph | – |
| 9 p.m. | 63°F | 58°F | 83% | 4.6 mph | 68% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094790. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for August in Watertown?
The warmest August temperature on this station's record (since 1949) is 96°F, on August 19, 1955; the coldest is 30°F, on August 27, 1969. The wettest August brought 7.70 in (1981).
The August mean against the 1991-2020 normal of 67.5°F: 2021 71.8°F (+4.3), 2022 70.6°F (+3.1), 2023 66.7°F (−0.8), 2024 68.4°F (+0.9), 2025 67.7°F (+0.2), 2026 67.6°F (+0.1). 5 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 71.8°F | +4.3°F | 6.53 in |
| 2022 | 70.6°F | +3.1°F | 5.29 in |
| 2023 | 66.7°F | −0.8°F | 5.30 in |
| 2024 | 68.4°F | +0.9°F | 6.85 in |
| 2025 | 67.7°F | +0.2°F | 4.20 in |
| 2026 | 67.6°F | +0.1°F | 5.12 in |
Source: records: ACIS, station USW00094790; recent months: ACIS, station USW00094790. Records and recent months use complete months only.
How does August in Watertown compare across New York?
Across the 131 places PlainClimate covers in New York, August normal highs run from 71°F in Cooperstown to 85°F in Mineola; Watertown's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.