Pittsburgh picks up around 30 more inches of snow each winter.
Irvine has around 107 fewer freezing nights a year. Irvine sees rain or snow on roughly 123 fewer days each year.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Irvine | Metric | Pittsburgh |
|---|---|---|
| 291 days | Sunny daysclear or partly cloudy skies | 160 days |
| 14 in | Precipitationper year | 48 in |
| 35 days | Wet daysrain or snow per year | 158 days |
| 0 in | Snowfallper year | 30 in |
| 37 days | Hot daysabove 90 °F | 13 days |
| 1 days | Freezing nightsat or below 32 °F | 108 days |
| 73% | Humidityaverage relative | 73% |
| 65 °F | Average temperatureyear round | 53 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Irvine high | 68 | 69 | 72 | 74 | 76 | 80 | 85 | 87 | 87 | 83 | 76 | 69 |
| Pittsburgh high | 38 | 40 | 50 | 63 | 72 | 80 | 84 | 83 | 76 | 65 | 52 | 42 |
| Irvine low | 45 | 46 | 49 | 51 | 55 | 59 | 62 | 63 | 62 | 56 | 49 | 44 |
| Pittsburgh low | 22 | 23 | 30 | 40 | 51 | 60 | 64 | 62 | 56 | 44 | 35 | 27 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Irvine | 3.1 | 3.6 | 2.2 | 0.9 | 0.4 | 0.1 | 0.1 | 0.0 | 0.2 | 0.7 | 0.9 | 2.2 |
| Pittsburgh | 3.6 | 3.1 | 4.2 | 4.7 | 4.8 | 5.0 | 4.6 | 3.7 | 4.0 | 3.7 | 3.5 | 3.5 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Irvine | 20 | 17 | 21 | 24 | 24 | 27 | 29 | 30 | 28 | 27 | 24 | 21 |
| Pittsburgh | 7 | 9 | 12 | 13 | 14 | 16 | 18 | 19 | 18 | 16 | 12 | 8 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Irvine vs another city
- Irvine vs Tustin, CA
- Irvine vs Laguna Woods, CA
- Irvine vs Lake Forest, CA
- Irvine vs North Tustin, CA
- Irvine vs Aliso Viejo, CA
- Irvine vs Laguna Hills, CA
- Irvine vs New York, NY
- Irvine vs Los Angeles, CA
- Irvine vs Chicago, IL
- Irvine vs Houston, TX
- Irvine vs Phoenix, AZ
- Irvine vs Philadelphia, PA
Pittsburgh vs another city
- Pittsburgh vs Baldwin, PA
- Pittsburgh vs Dormont, PA
- Pittsburgh vs Brentwood, PA
- Pittsburgh vs Swissvale, PA
- Pittsburgh vs McKees Rocks, PA
- Pittsburgh vs Crafton, PA
- Pittsburgh vs New York, NY
- Pittsburgh vs Los Angeles, CA
- Pittsburgh vs Chicago, IL
- Pittsburgh vs Houston, TX
- Pittsburgh vs Phoenix, AZ
- Pittsburgh vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).