Climate Comfort Score
44/100
Moderate
NOAA 1991–2020 normals 54°F annual avg Public-domain federal data
Ontario Muni, OR Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 54°F
- Avg annual temp
- 44/100
- Comfort score
- 9.5"
- Annual precip
- 176d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Ontario Muni
Ontario Muni, Oregon averages 54°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.
- 54°F
- annual average temperature (NOAA normal)
- 44/100
- comfort score, milder than 8% of U.S. cities
- 9.5"
- yearly precipitation total
- 176 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
54°F (12°C)
Avg High
67°F
Avg Low
41°F
Annual Precip
9.5"
Comfort Score
44/100
Moderate
Avg Annual Temperature
54°F
30-year mean (NOAA NCEI)
Annual Precipitation
9.5"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Ontario Muni) 44.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Ontario Muni area.
How Ontario Muni compares to every U.S. city
Ontario Muni's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 Top 92% higher than 8% 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 Ontario Muni
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Ontario Muni captures average conditions across the spread shown, the most recent decade is 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 38°F (3°C) | 24°F (-4°C) | 31°F (0°C) | 1.4" | 27.7 | 0.0 |
| February | 47°F (8°C) | 28°F (-2°C) | 38°F (3°C) | 0.9" | 22.3 | 0.0 |
| March | 58°F (15°C) | 34°F (1°C) | 46°F (8°C) | 1.0" | 15.5 | 0.0 |
| April | 66°F (19°C) | 39°F (4°C) | 53°F (12°C) | 0.8" | 6.7 | 0.0 |
| May | 76°F (25°C) | 48°F (9°C) | 62°F (17°C) | 1.2" | 1.0 | 1.9 |
| June | 85°F (29°C) | 55°F (13°C) | 70°F (21°C) | 0.7" | 0.0 | 8.4 |
| July | 95°F (35°C) | 62°F (16°C) | 78°F (26°C) | 0.3" | 0.0 | 24.5 |
| August | 93°F (34°C) | 59°F (15°C) | 76°F (25°C) | 0.1" | 0.0 | 20.9 |
| September | 83°F (28°C) | 49°F (10°C) | 66°F (19°C) | 0.3" | 0.3 | 5.1 |
| October | 67°F (19°C) | 39°F (4°C) | 53°F (12°C) | 0.6" | 8.3 | 0.0 |
| November | 50°F (10°C) | 30°F (-1°C) | 40°F (4°C) | 0.9" | 20.4 | 0.0 |
| December | 39°F (4°C) | 24°F (-4°C) | 32°F (0°C) | 1.4" | 26.2 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 1.4"
9.5 days with precipitation
February 0.9"
8.3 days with precipitation
March 1.0"
9.5 days with precipitation
April 0.8"
7.2 days with precipitation
May 1.2"
8.1 days with precipitation
June 0.7"
5.7 days with precipitation
July 0.3"
1.5 days with precipitation
August 0.1"
1.8 days with precipitation
September 0.3"
3.4 days with precipitation
October 0.6"
5.4 days with precipitation
November 0.9"
8.3 days with precipitation
December 1.4"
11.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 14
50% probability date
Last Spring Freeze
April 21
50% probability date
Growing Season
176 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,200
Higher = more heating needed
Cooling Degree Days
1,100
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Ontario Muni's climate means for you
Ontario Muni runs 54°F a year - peaking in July, coldest in January.
- Gardeners get about 176 frost-free days, with the last spring freeze near April 21 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,200 heating and 1,100 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: Ontario Muni, OR
Based on station USW00024162 feeding NOAA's 1991–2020 climate normals, Ontario Muni, Oregon averages 54°F a year, ranging from a mean daily high of 67°F to a mean daily low of 41°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Beyond temperature, Ontario Muni averages 9.5 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 176 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 21 and the first fall freeze near October 14. Turning to energy use, 5,200 heating degree days and 1,100 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Ontario Muni scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.
Frequently Asked Questions
What is the average temperature in Ontario Muni, OR? ▼
The average annual temperature in Ontario Muni, Oregon is 54°F. The warmest month averages 95°F (35°C) and the coldest averages 24°F (-4°C).
How much rain does Ontario Muni get? ▼
Ontario Muni receives 9.5 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Ontario Muni? ▼
Ontario Muni has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Ontario Muni? ▼
Ontario Muni has approximately 176 frost-free days per year, with the last spring freeze around April 21 and the first fall freeze around October 14.
How much energy does heating and cooling require in Ontario Muni? ▼
Ontario Muni has 5,200 heating degree days and 1,100 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 Ontario Muni climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00024162 near Ontario Muni.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00024162. 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.