Onondaga County (Syracuse)
May
Weather in Onondaga County, New York for May 2026
Your guide to Onondaga County weather in May - trends and predictions
In general, the average temperature in Onondaga County at the beginning of May is 17.1 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 18.9 °F by the end of May.
Onondaga County experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 144.9 mm.
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Temperatures
Rain 🌧️
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10
Dry days
21
Rainy days
0
Snow days
19°/10°
Temperatures
17 km/h
Avg max wind
82 %
Avg humidity
Onondaga County Weather May
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Temperatures trend during May in Onondaga County
See the weather trend as well as the moving average line
May weather in Onondaga County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 18° /4° | 0.1 mm | 5 | |
| May 2 | Patchy rain possible | 17° /9° | 16.7 mm | 4 | |
| May 3 |  Partly cloudy | 16° /7° | 13 mm | 5 | |
| May 4 |  Light drizzle | 15° /8° | 2.8 mm | 4 | |
| May 5 | Light rain shower | 15° /9° | 10.5 mm | 4 | |
| May 6 |  Fog | 20° /11° | 15 mm | 5 | |
| May 7 | Partly cloudy | 19° /9° | 1.6 mm | 5 | |
| May 8 |  Patchy light rain with thunder | 16° /9° | 2.6 mm | 4 | |
| May 9 |  Moderate rain | 10° /7° | 5.3 mm | 3 | |
| May 10 | Light rain | 14° /6° | 5.4 mm | 4 | |
| May 11 | Light rain shower | 13° /5° | 1 mm | 4 | |
| May 12 | Light rain | 18° /4° | 4.8 mm | 5 | |
| May 13 | Light rain shower | 18° /9° | 14.7 mm | 4 | |
| May 14 | Light rain shower | 19° /12° | 1.8 mm | 5 | |
| May 15 | Light rain shower | 21° /12° | 1.3 mm | 5 | |
| May 16 | Light drizzle | 21° /13° | 4.2 mm | 5 | |
| May 17 | Patchy light rain | 24° /11° | 29 mm | 6 | |
| May 18 | Patchy rain possible | 16° /11° | 14.5 mm | 4 | |
| May 19 | Patchy rain possible | 18° /9° | 0 mm | 4 | |
| May 20 | Mist | 19° /8° | 0 mm | 5 | |
| May 21 | Patchy rain possible | 19° /12° | 11.4 mm | 5 | |
| May 22 | Patchy light rain with thunder | 18° /11° | 47 mm | 4 | |
| May 23 | Light drizzle | 15° /9° | 10 mm | 4 | |
| May 24 | Patchy rain possible | 16° /8° | 10.5 mm | 4 | |
| May 25 |  Thundery outbreaks possible | 20° /8° | 7.6 mm | 5 | |
| May 26 | Fog | 21° /9° | 0 mm | 5 | |
| May 27 | Light rain shower | 20° /8° | 8.7 mm | 5 | |
| May 28 | Patchy light rain with thunder | 19° /12° | 3 mm | 4 | |
| May 29 | Light rain shower | 17° /9° | 20.6 mm | 4 | |
| May 30 |  Cloudy | 19° /8° | 6.4 mm | 5 | |
| May 31 | Partly cloudy | 16° /7° | 2.1 mm | 4 | |
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Important Notice
Our weather forecast for Onondaga County in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Onondaga County forecast closer to your planned date for the most up-to-date weather information.
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Onondaga County in May - FAQ
What are the expected maximum and minimum temperatures in Onondaga County during May?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Onondaga County during May?
Significant rainfall exceeding 144.9 mm is expected in Onondaga County during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Onondaga County during May?
The average wind speed in Onondaga County during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Onondaga County
Explore the daily rainfall trends and prepare for Onondaga Countys May weather 💧
UV exposure in Onondaga County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Onondaga County?Get accurate weather forecasts for Onondaga County, located at latitude 43.048 and longitude -76.147. Stay updated with localized weather information tailored for Onondaga County.
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