Oswego weather in August: Oswego, New York: normal highs, lows, rain and records for August
Oswego in August has a normal high of 79°F and a normal low of 62°F, a daily mean of 70°F, falling from 80°F on the 1st to 77°F by the 31st. Measurable precipitation falls on 11 days in a normal August, 3.45 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 17°C, 88 mm of precipitation in August.
- NOAA stationOswego
- Station IDUSC00306314
- Location43.45°N 76.54°W
- Elevation324 ft (99 m)
- Population17,047
- Jan 31° 19°
- Feb 33° 20°
- Mar 41° 27°
- Apr 53° 37°
- May 66° 48°
- Jun 75° 57°
- Jul 80° 63°
- Aug 79° 62°
- Sep 72° 55°
- Oct 59° 45°
- Nov 47° 35°
- Dec 37° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Oswego in August?
The normal high is 79°F and the normal low 62°F, for a daily mean of 70.4°F. August is 1.1°F cooler than July and 7.0°F warmer than September. August is the 2nd warmest month of the year in Oswego and the 7th wettest. Across the month the normal high falls 3°F, from 80°F on August 1 to 77°F on August 31. From one year to the next August's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 69°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 80°F | 64°F | 36% | 23% |
| August 8 | 79°F | 63°F | 36% | 22% |
| August 15 | 79°F | 63°F | 35% | 22% |
| August 22 | 78°F | 62°F | 34% | 22% |
| August 31 | 77°F | 60°F | 34% | 22% |
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 | 80°F | 64°F | 36% | 23% | 14 h 40 min |
| August 2 | 80°F | 64°F | 36% | 23% | 14 h 30 min |
| August 3 | 79°F | 64°F | 36% | 23% | 14 h 30 min |
| August 4 | 79°F | 64°F | 36% | 23% | 14 h 30 min |
| August 5 | 79°F | 64°F | 36% | 22% | 14 h 30 min |
| August 6 | 79°F | 64°F | 36% | 22% | 14 h 20 min |
| August 7 | 79°F | 64°F | 36% | 22% | 14 h 20 min |
| August 8 | 79°F | 63°F | 36% | 22% | 14 h 20 min |
| August 9 | 79°F | 63°F | 36% | 22% | 14 h 20 min |
| August 10 | 79°F | 63°F | 36% | 22% | 14 h 10 min |
| August 11 | 79°F | 63°F | 35% | 22% | 14 h 10 min |
| August 12 | 79°F | 63°F | 35% | 22% | 14 h 10 min |
| August 13 | 79°F | 63°F | 35% | 22% | 14 h 10 min |
| August 14 | 79°F | 63°F | 35% | 22% | 14 h |
| August 15 | 79°F | 63°F | 35% | 22% | 14 h |
| August 16 | 79°F | 63°F | 35% | 22% | 14 h |
| August 17 | 79°F | 62°F | 35% | 22% | 14 h |
| August 18 | 79°F | 62°F | 35% | 22% | 13 h 50 min |
| August 19 | 79°F | 62°F | 35% | 22% | 13 h 50 min |
| August 20 | 78°F | 62°F | 35% | 22% | 13 h 50 min |
| August 21 | 78°F | 62°F | 35% | 22% | 13 h 50 min |
| August 22 | 78°F | 62°F | 34% | 22% | 13 h 40 min |
| August 23 | 78°F | 62°F | 34% | 22% | 13 h 40 min |
| August 24 | 78°F | 61°F | 34% | 22% | 13 h 40 min |
| August 25 | 78°F | 61°F | 34% | 22% | 13 h 30 min |
| August 26 | 78°F | 61°F | 34% | 22% | 13 h 30 min |
| August 27 | 77°F | 61°F | 34% | 22% | 13 h 30 min |
| August 28 | 77°F | 61°F | 34% | 22% | 13 h 30 min |
| August 29 | 77°F | 60°F | 34% | 22% | 13 h 20 min |
| August 30 | 77°F | 60°F | 34% | 22% | 13 h 20 min |
| August 31 | 77°F | 60°F | 34% | 22% | 13 h 20 min |
- Normal high
- 79°FAugust average
- Normal low
- 62°FAugust average
- Precipitation
- 3.45 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 USC00306314; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Oswego in August?
On a given August day the chance of 0.01 inch or more is 35% on average, highest around August 1 (36%). In all, 3.45 in falls on 11 days of a normal August, 1 of them with an inch or more.
In a normal August in Oswego, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00306314.
What are the records for August in Oswego?
The warmest August temperature on Oswego's official record (since 1926) is 97°F, on August 14, 2002; the coldest is 42°F, on August 27, 1969. The wettest August brought 7.86 in (1992).
The August mean against the 1991-2020 normal of 70.4°F: 2021 73.7°F (+3.3), 2022 73.0°F (+2.6), 2023 69.3°F (−1.1), 2024 70.2°F (−0.2), 2025 69.6°F (−0.8), 2026 71.4°F (+1.0). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 73.7°F | +3.3°F | 2.85 in |
| 2022 | 73.0°F | +2.6°F | 4.35 in |
| 2023 | 69.3°F | −1.1°F | 4.99 in |
| 2024 | 70.2°F | −0.2°F | 6.46 in |
| 2025 | 69.6°F | −0.8°F | 2.31 in |
| 2026 | 71.4°F | +1.0°F | 1.53 in |
Source: records: ACIS, NWS threaded record OSWN6thr; recent months: ACIS, station USC00306314. Records and recent months use complete months only.
How does August in Oswego 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; Oswego's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.