The year at a glance
Averages from 30 years of climate history, 1991-2020
| Griffith | Metric | St. John |
|---|---|---|
| 179 days | Sunny daysclear or partly cloudy skies | 179 days |
| 39 in | Precipitationper year | 39 in |
| 133 days | Wet daysrain or snow per year | 133 days |
| 29 in | Snowfallper year | 28 in |
| 15 days | Hot daysabove 90 °F | 15 days |
| 130 days | Freezing nightsat or below 32 °F | 131 days |
| 72% | Humidityaverage relative | 71% |
| 50 °F | Average temperatureyear round | 50 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Griffith high | 31 | 35 | 47 | 60 | 71 | 80 | 84 | 82 | 76 | 63 | 49 | 37 |
| St. John high | 31 | 35 | 47 | 60 | 71 | 80 | 84 | 82 | 76 | 64 | 49 | 37 |
| Griffith low | 15 | 18 | 28 | 38 | 49 | 59 | 63 | 62 | 54 | 42 | 31 | 21 |
| St. John low | 15 | 18 | 28 | 38 | 49 | 59 | 63 | 61 | 54 | 42 | 31 | 21 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Griffith | 2.5 | 2.1 | 3.0 | 4.3 | 4.5 | 4.0 | 3.8 | 3.7 | 3.0 | 3.3 | 2.8 | 2.3 |
| St. John | 2.5 | 2.1 | 3.0 | 4.3 | 4.5 | 4.0 | 3.8 | 3.7 | 3.0 | 3.3 | 2.8 | 2.3 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Griffith | 10 | 11 | 14 | 14 | 15 | 16 | 20 | 20 | 20 | 17 | 13 | 11 |
| St. John | 10 | 11 | 14 | 14 | 15 | 16 | 20 | 20 | 20 | 17 | 13 | 11 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Griffith vs another city
- Griffith vs Highland, IN
- Griffith vs Ross, IN
- Griffith vs Schererville, IN
- Griffith vs Munster, IN
- Griffith vs Dyer, IN
- Griffith vs Gary, IN
- Griffith vs New York, NY
- Griffith vs Los Angeles, CA
- Griffith vs Chicago, IL
- Griffith vs Houston, TX
- Griffith vs Phoenix, AZ
- Griffith vs Philadelphia, PA
St. John vs another city
- St. John vs Schererville, IN
- St. John vs Dyer, IN
- St. John vs Cedar Lake, IN
- St. John vs Sauk Village, IL
- St. John vs Crown Point, IN
- St. John vs New York, NY
- St. John vs Los Angeles, CA
- St. John vs Chicago, IL
- St. John vs Houston, TX
- St. John vs Phoenix, AZ
- St. John 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).