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United States weather

Weather in Onondaga County, New York for May 2026

Your guide to Onondaga County weather in May - trends and predictions

    Temperatures

  • Until now, May 2026 in Onondaga County is cooler than usual, with temperatures averaging 12 °F, this is -3.1 °F below the typical seasonal average.

  • The forecast for the coming days of May 2026 predicts a temperature of 21.1 °F , which is warmer than usual.

  • In general, the average temperature in Onondaga County at the beginning of May is 15.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.4 °F by the end of May.

    • Rain 🌧️

  • Onondaga County experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 272 mm.

    • More

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Average dry days
4
Dry days
Average rainy days
27
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/9°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Onondaga County Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
16°
2
Patchy rain possible
14°
3
Partly cloudy
15°
4
Light drizzle
17°
5
Light rain shower
17°
6
Moderate or heavy rain shower
16°
7
Partly cloudy
16°
8
Patchy light rain with thunder
14°
9
Moderate rain
11°
10
Light rain
13°
11
Light rain shower
12°
12
Light rain
17°
13
Light rain shower
17°
14
Light rain shower
16°
15
Light rain shower
19°
16
Patchy rain possible
29°
17
Patchy rain possible
22°
18
Moderate rain
29°
19
Patchy rain possible
30°
20
Patchy rain possible
24°
21
Partly cloudy
16°
22
Partly cloudy
15°
23
Moderate rain
8°
24
Patchy rain possible
15°
25
Partly cloudy
19°
26
Partly cloudy
26°
27
Sunny
20°
28
Sunny
23°
29
Partly cloudy
20°
30
Cloudy
19°
31
Partly cloudy
16°

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

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
May 1 Patchy rain possible
Patchy rain possible
 16° /3° 0.8 mm 5
May 2 Patchy rain possible
Patchy rain possible
 14° /6° 11.7 mm 4
May 3 Partly cloudy
Partly cloudy
 15° /4° 8.9 mm 5
May 4 Light drizzle
Light drizzle
 17° /7° 2 mm 5
May 5 Light rain shower
Light rain shower
 17° /9° 13.4 mm 3
May 6 Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /9° 19.1 mm 4
May 7 Partly cloudy
Partly cloudy
 16° /7° 1.2 mm 5
May 8 Patchy light rain with thunder
Patchy light rain with thunder
 14° /6° 2.2 mm 4
May 9 Moderate rain
Moderate rain
 11° /6° 4 mm 3
May 10 Light rain
Light rain
 13° /5° 6.1 mm 4
May 11 Light rain shower
Light rain shower
 12° /4° 1 mm 5
May 12 Light rain
Light rain
 17° /3° 3.2 mm 6
May 13 Light rain shower
Light rain shower
 17° /8° 14.1 mm 3
May 14 Light rain shower
Light rain shower
 16° /10° 1.7 mm 4
May 15 Light rain shower
Light rain shower
 19° /10° 1.6 mm 4
May 16 Patchy rain possible
Patchy rain possible
 29° /8° 4.2 mm 8.4
May 17 Patchy rain possible
Patchy rain possible
 22° /13° 0.8 mm 3.8
May 18 Moderate rain
Moderate rain
 29° /13° 11.1 mm 8.5
May 19 Patchy rain possible
Patchy rain possible
 30° /17° 2.1 mm 8.4
May 20 Patchy rain possible
Patchy rain possible
 24° /12° 1.6 mm 0.9
May 21 Partly cloudy
Partly cloudy
 16° /8° 0 mm 4
May 22 Partly cloudy
Partly cloudy
 15° /7° 0.1 mm 4
May 23 Moderate rain
Moderate rain
 8° /7° 6 mm 2
May 24 Patchy rain possible
Patchy rain possible
 15° /7° 0.1 mm 2
May 25 Partly cloudy
Partly cloudy
 19° /5° 0.1 mm 4
May 26 Partly cloudy
Partly cloudy
 26° /9° 0 mm 4
May 27 Sunny
Sunny
 20° /7° 0 mm 4
May 28 Sunny
Sunny
 23° /9° 0 mm 5
May 29 Partly cloudy
Partly cloudy
 20° /13° 0.1 mm 5
May 30 Cloudy
Cloudy
 19° /8° 6.4 mm 5
May 31 Partly cloudy
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 17° and cooler nights around 9°. 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 272 mm is expected in Onondaga County during May, occurring over more than 27 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 18 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 💧
Typically, Onondaga County has 27 rainy days in May with a total of 272 mm of rainfall.

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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Syracuse
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Location coordinates 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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