Climate averages 1991–2020
Scranton weather
in May.
A mild, moderately wet month: the 5th warmest and the joint 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Scranton: daytime highs average 20.0°C and nights cool to about 10.0°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 89 mm of rain on roughly 13 days, which makes May a moderately wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 29 min on an average May day.
The nearest other city in this atlas is Allentown (90 km away). In May its highs average 21.3°C, 1.3°C warmer than Scranton, with 95 mm of rain.
Among the 498 cities listed in the United States, Scranton ranks joint 378th of 498 for the warmest May highs and joint 283rd of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Scranton is 3.8°C cooler than that mean.
From May to June, average highs rise by 4.5°C to 24.6°C, and monthly rainfall rises from 89 mm to 97 mm.
The annual picture
May in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Scranton climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.9°C-7.3°C | -7.3°C | 75 | 9.4 | 9.610 h |
| February | 2.5°C-6.8°C | -6.8°C | 64 | 9.1 | 10.611 h |
| March | 7.2°C-2.6°C | -2.6°C | 91 | 11.4 | 11.912 h |
| April | 14.2°C3.7°C | 3.7°C | 89 | 11.7 | 13.313 h |
| May, selected | 20.0°C10.0°C | 10.0°C | 89 | 12.6 | 14.514 h |
| June | 24.6°C15.1°C | 15.1°C | 97 | 12.0 | 15.115 h |
| July | 27.4°C18.0°C | 18.0°C | 76 | 10.9 | 14.815 h |
| August | 26.5°C17.3°C | 17.3°C | 84 | 9.9 | 13.814 h |
| September | 22.6°C13.6°C | 13.6°C | 95 | 9.3 | 12.513 h |
| October | 15.7°C7.5°C | 7.5°C | 93 | 9.6 | 11.111 h |
| November | 9.1°C1.7°C | 1.7°C | 77 | 8.7 | 9.910 h |
| December | 3.4°C-3.4°C | -3.4°C | 83 | 10.5 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Allentown in MayUnited States · 90 kmHigh 21.3°C · Low 10.4°C · 95 mm rain
- Bethlehem, United States in MayUnited States · 91 kmHigh 21.2°C · Low 10.3°C · 93 mm rain
- Reading, United States in MayUnited States · 121 kmHigh 22.0°C · Low 11.5°C · 92 mm rain
- Paterson in MayUnited States · 136 kmHigh 20.9°C · Low 11.1°C · 97 mm rain
- Passaic in MayUnited States · 143 kmHigh 20.8°C · Low 11.1°C · 90 mm rain
- Edison in MayUnited States · 144 kmHigh 21.4°C · Low 11.6°C · 90 mm rain
- Newark in MayUnited States · 146 kmHigh 21.3°C · Low 11.3°C · 90 mm rain
- Trenton in MayUnited States · 154 kmHigh 21.8°C · Low 11.6°C · 88 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Scranton) is explained once on the Scranton year overview and on the Sources, method and limits page.