Erie weather in May: Erie, Pennsylvania: normal highs, lows, rain and records for May
Erie in May has a normal high of 68°F and a normal low of 49°F, a daily mean of 59°F, rising from 63°F on the 1st to 73°F by the 31st. Measurable precipitation falls on 14 days in a normal May, 3.50 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 10°C, 89 mm of precipitation in May.
- NOAA stationErie International Airport
- Station IDUSW00014860
- Location42.08°N 80.18°W
- Elevation730 ft (223 m)
- From the center6 miles
- Population92,940
- Jan 35° 21°
- Feb 37° 21°
- Mar 44° 28°
- Apr 57° 38°
- May 68° 49°
- Jun 77° 59°
- Jul 81° 64°
- Aug 80° 63°
- Sep 74° 57°
- Oct 62° 46°
- Nov 51° 37°
- Dec 40° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Erie in May?
The normal high is 68°F and the normal low 49°F, for a daily mean of 58.8°F. May is 11.4°F warmer than April and 9.4°F cooler than June. May is the 5th warmest month of the year in Erie and the 6th wettest. Across the month the normal high rises 10°F, from 63°F on May 1 to 73°F on May 31. From one year to the next May's mean temperature typically moves about 3.4°F either way (NOAA's standard deviation), so roughly two Mays in three average between 55°F and 62°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 45%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 63°F | 44°F | 45% | 28% |
| May 8 | 66°F | 46°F | 45% | 27% |
| May 15 | 68°F | 49°F | 44% | 26% |
| May 22 | 70°F | 52°F | 42% | 25% |
| May 31 | 73°F | 55°F | 40% | 24% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 63°F | 44°F | 45% | 28% | 14 h |
| May 2 | 64°F | 44°F | 45% | 28% | 14 h |
| May 3 | 64°F | 45°F | 45% | 27% | 14 h 10 min |
| May 4 | 64°F | 45°F | 45% | 27% | 14 h 10 min |
| May 5 | 65°F | 45°F | 45% | 27% | 14 h 10 min |
| May 6 | 65°F | 46°F | 45% | 27% | 14 h 10 min |
| May 7 | 66°F | 46°F | 45% | 27% | 14 h 10 min |
| May 8 | 66°F | 46°F | 45% | 27% | 14 h 20 min |
| May 9 | 66°F | 47°F | 45% | 27% | 14 h 20 min |
| May 10 | 67°F | 47°F | 45% | 27% | 14 h 20 min |
| May 11 | 67°F | 48°F | 44% | 26% | 14 h 20 min |
| May 12 | 67°F | 48°F | 44% | 26% | 14 h 30 min |
| May 13 | 68°F | 48°F | 44% | 26% | 14 h 30 min |
| May 14 | 68°F | 49°F | 44% | 26% | 14 h 30 min |
| May 15 | 68°F | 49°F | 44% | 26% | 14 h 30 min |
| May 16 | 68°F | 49°F | 44% | 26% | 14 h 30 min |
| May 17 | 69°F | 50°F | 43% | 25% | 14 h 40 min |
| May 18 | 69°F | 50°F | 43% | 25% | 14 h 40 min |
| May 19 | 69°F | 50°F | 43% | 25% | 14 h 40 min |
| May 20 | 70°F | 51°F | 42% | 25% | 14 h 40 min |
| May 21 | 70°F | 51°F | 42% | 25% | 14 h 40 min |
| May 22 | 70°F | 52°F | 42% | 25% | 14 h 50 min |
| May 23 | 71°F | 52°F | 42% | 24% | 14 h 50 min |
| May 24 | 71°F | 52°F | 42% | 24% | 14 h 50 min |
| May 25 | 71°F | 53°F | 41% | 24% | 14 h 50 min |
| May 26 | 71°F | 53°F | 41% | 24% | 14 h 50 min |
| May 27 | 72°F | 53°F | 41% | 24% | 14 h 50 min |
| May 28 | 72°F | 54°F | 41% | 24% | 15 h |
| May 29 | 72°F | 54°F | 41% | 24% | 15 h |
| May 30 | 73°F | 54°F | 41% | 24% | 15 h |
| May 31 | 73°F | 55°F | 40% | 24% | 15 h |
- Normal high
- 68°FMay average
- Normal low
- 49°FMay average
- Precipitation
- 3.50 inmonth total
- Days with precipitation
- 140.01 inch or more
- Daylight
- 14 h to 15 hMay 1 to May 31
- Days at 70°F or more
- 13
- Days at 80°F or more
- 5
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014860; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Erie in May?
On a given May day the chance of 0.01 inch or more is 43% on average, highest around May 1 (45%). In all, 3.50 in falls on 14 days of a normal May, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014860.
How humid and windy is Erie in May?
At 3 p.m. the normal temperature is 69°F with 57% relative humidity and a dew point of 53°F; at 6 a.m. it is 58°F with 79% humidity. The wind averages 8.5 mph, most often from the west-northwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 58°F | 52°F | 79% | 7.6 mph | 56% |
| 9 a.m. | 65°F | 54°F | 67% | 9.5 mph | 57% |
| noon | 67°F | 54°F | 62% | 10.9 mph | 60% |
| 3 p.m. | 69°F | 53°F | 57% | 10.7 mph | 64% |
| 6 p.m. | 68°F | 52°F | 58% | 8.5 mph | 66% |
| 9 p.m. | 63°F | 53°F | 71% | 6.1 mph | 62% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014860. 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 May in Erie?
The warmest May temperature on Erie's official record (since 1873) is 91°F, on May 30, 1879; the coldest is 26°F, on May 7, 1970. The wettest May brought 8.54 in (2011); the snowiest, 1.7 inches (1923).
The May mean against the 1991-2020 normal of 58.8°F: 2021 58.4°F (−0.4), 2022 61.0°F (+2.2), 2023 56.0°F (−2.8), 2024 63.2°F (+4.4), 2025 56.1°F (−2.7), 2026 56.0°F (−2.8). 2 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 58.4°F | −0.4°F | 2.34 in |
| 2022 | 61.0°F | +2.2°F | 4.54 in |
| 2023 | 56.0°F | −2.8°F | 1.67 in |
| 2024 | 63.2°F | +4.4°F | 2.45 in |
| 2025 | 56.1°F | −2.7°F | 4.46 in |
| 2026 | 56.0°F | −2.8°F | 3.61 in |
Source: records: ACIS, NWS threaded record ERIthr; recent months: ACIS, station USW00014860. Records and recent months use complete months only.
How does May in Erie compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, May normal highs run from 65°F in Laporte to 75°F in Phoenixville; Erie's is 68°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.