Climate Comfort Score
82/100
Excellent
NOAA 1991–2020 normals 60°F annual avg Public-domain federal data
- 60°F
- Avg annual temp
- 82/100
- Comfort score
- 17.7"
- Annual precip
- 244d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Jerome
Jerome, Arizona averages 60°F a year and scores 82/100 on the comfort index - excellent, milder than 83% of U.S. cities.
- 60°F
- annual average temperature (NOAA normal)
- 82/100
- comfort score, milder than 83% of U.S. cities
- 17.7"
- annual precipitation · 6" snow
- 244 days
- frost-free days per growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
60°F (16°C)
Avg High
70°F
Avg Low
50°F
Annual Precip
17.7"
Annual Snow
6.3"
Comfort Score
82/100
Excellent
Avg Annual Temperature
60°F
30-year mean (NOAA NCEI)
Annual Precipitation
17.7"
Plus 6.3" of snow
Comfort score vs national 100-point ceiling (Jerome) 82.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Jerome area.
How Jerome compares to every U.S. city
Jerome's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
82 Top 17% higher than 83% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Jerome
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Jerome's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 50°F (10°C) | 35°F (1°C) | 42°F (6°C) | 1.8" | 1.7" | 9.8 | 0.0 |
| February | 53°F (12°C) | 36°F (2°C) | 45°F (7°C) | 1.8" | 1.0" | 7.4 | 0.0 |
| March | 61°F (16°C) | 41°F (5°C) | 51°F (10°C) | 1.7" | 1.4" | 3.8 | 0.0 |
| April | 68°F (20°C) | 46°F (8°C) | 57°F (14°C) | 0.7" | 1.4" | 1.3 | 0.0 |
| May | 78°F (25°C) | 55°F (13°C) | 66°F (19°C) | 0.5" | 0.0" | 0.0 | 2.0 |
| June | 89°F (32°C) | 66°F (19°C) | 77°F (25°C) | 0.3" | 0.0" | 0.0 | 16.1 |
| July | 91°F (33°C) | 69°F (20°C) | 80°F (27°C) | 2.4" | 0.0" | 0.0 | 20.6 |
| August | 88°F (31°C) | 67°F (19°C) | 77°F (25°C) | 3.0" | 0.0" | 0.0 | 13.8 |
| September | 82°F (28°C) | 62°F (17°C) | 72°F (22°C) | 1.6" | 0.0" | 0.0 | 2.7 |
| October | 71°F (22°C) | 53°F (12°C) | 62°F (17°C) | 1.3" | 0.0" | 0.5 | 0.0 |
| November | 59°F (15°C) | 42°F (6°C) | 50°F (10°C) | 0.9" | 0.1" | 3.2 | 0.0 |
| December | 49°F (9°C) | 34°F (1°C) | 42°F (5°C) | 1.7" | 0.7" | 10.3 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.8"
Snow: 1.7"
5.6 days with precipitation
February 1.8"
Snow: 1.0"
6.1 days with precipitation
March 1.7"
Snow: 1.4"
5.7 days with precipitation
April 0.7"
Snow: 1.4"
3.5 days with precipitation
May 0.5"
3.4 days with precipitation
June 0.3"
1.8 days with precipitation
July 2.4"
9.0 days with precipitation
August 3.0"
10.9 days with precipitation
September 1.6"
5.6 days with precipitation
October 1.3"
3.8 days with precipitation
November 0.9"
Snow: 0.1"
3.6 days with precipitation
December 1.7"
Snow: 0.7"
4.8 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 25
50% probability date
Last Spring Freeze
March 26
50% probability date
Growing Season
244 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,391
Higher = more heating needed
Cooling Degree Days
1,639
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Jerome's climate means for you
Jerome runs 60°F a year - peaking in July, coldest in December.
- Gardeners get about 244 frost-free days, with the last spring freeze near March 26 - plan the planting calendar around it, not the regional average.
- Energy bills track 3,391 heating and 1,639 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Jerome, AZ
In Jerome, Arizona, the NOAA 1991–2020 climate normals put the annual average temperature at 60°F, ranging from a mean daily high of 70°F to a mean daily low of 50°F. July is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USC00024453, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Beyond temperature, Jerome averages 17.7 inches of precipitation annually, with 6.3 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 244 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 26 and the first fall freeze near November 25. Turning to energy use, 3,391 heating degree days and 1,639 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Jerome scores 82/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and December-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Jerome, AZ? ▼
The average annual temperature in Jerome, Arizona is 60°F. The warmest month averages 91°F (33°C) and the coldest averages 34°F (1°C).
How much rain does Jerome get? ▼
Jerome receives 17.7 inches of precipitation annually, including 6.3 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Jerome? ▼
Jerome has a climate comfort score of 82/100 (Excellent), milder than 83% of U.S. cities in the PlainClimate database.
When is the growing season in Jerome? ▼
Jerome has approximately 244 frost-free days per year, with the last spring freeze around March 26 and the first fall freeze around November 25.
How much energy does heating and cooling require in Jerome? ▼
Jerome has 3,391 heating degree days and 1,639 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Jerome climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00024453 near Jerome.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00024453. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.