Climate Comfort Score
87/100
Excellent
NOAA 1991–2020 normals 63°F annual avg Public-domain federal data
Portland, AR Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 63°F
- Avg annual temp
- 87/100
- Comfort score
- 56.4"
- Annual precip
- 241d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Portland
Portland, Arkansas averages 63°F a year and scores 87/100 on the comfort index - excellent, milder than 89% of U.S. cities.
- 63°F
- annual average temperature (NOAA normal)
- 87/100
- comfort score, milder than 89% of U.S. cities
- 56.4"
- annual precipitation · 1" snow
- 241 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
63°F (17°C)
Avg High
74°F
Avg Low
53°F
Annual Precip
56.4"
Annual Snow
1.0"
Comfort Score
87/100
Excellent
Avg Annual Temperature
63°F
30-year mean (NOAA NCEI)
Annual Precipitation
56.4"
Plus 1.0" of snow
Comfort score vs national 100-point ceiling (Portland) 87.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Portland area.
How Portland compares to every U.S. city
Portland's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
87 Top 11% higher than 89% 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 Portland
MethodologyZooming out from Portland's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.
- 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 | 53°F (12°C) | 33°F (0°C) | 43°F (6°C) | 5.7" | 0.6" | 16.5 | 0.0 |
| February | 57°F (14°C) | 36°F (2°C) | 46°F (8°C) | 6.0" | 0.2" | 11.1 | 0.0 |
| March | 65°F (18°C) | 44°F (7°C) | 54°F (12°C) | 5.1" | 0.1" | 3.9 | 0.0 |
| April | 74°F (23°C) | 52°F (11°C) | 63°F (17°C) | 5.7" | 0.0" | 0.1 | 0.2 |
| May | 82°F (28°C) | 62°F (16°C) | 72°F (22°C) | 4.9" | 0.0" | 0.0 | 5.4 |
| June | 88°F (31°C) | 69°F (21°C) | 79°F (26°C) | 3.4" | 0.0" | 0.0 | 18.4 |
| July | 91°F (33°C) | 72°F (22°C) | 81°F (27°C) | 4.3" | 0.0" | 0.0 | 24.0 |
| August | 91°F (33°C) | 71°F (22°C) | 81°F (27°C) | 3.6" | 0.0" | 0.0 | 23.7 |
| September | 87°F (30°C) | 64°F (18°C) | 76°F (24°C) | 3.4" | 0.0" | 0.0 | 14.3 |
| October | 77°F (25°C) | 52°F (11°C) | 64°F (18°C) | 4.3" | 0.0" | 0.4 | 2.0 |
| November | 65°F (18°C) | 41°F (5°C) | 53°F (12°C) | 4.4" | 0.0" | 5.4 | 0.0 |
| December | 55°F (13°C) | 35°F (2°C) | 45°F (7°C) | 5.6" | 0.1" | 14.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 5.7"
Snow: 0.6"
9.0 days with precipitation
February 6.0"
Snow: 0.2"
8.6 days with precipitation
March 5.1"
Snow: 0.1"
9.0 days with precipitation
April 5.7"
9.0 days with precipitation
May 4.9"
8.9 days with precipitation
June 3.4"
7.1 days with precipitation
July 4.3"
7.5 days with precipitation
August 3.6"
6.5 days with precipitation
September 3.4"
5.6 days with precipitation
October 4.3"
6.4 days with precipitation
November 4.4"
7.2 days with precipitation
December 5.6"
Snow: 0.1"
8.4 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 10
50% probability date
Last Spring Freeze
March 14
50% probability date
Growing Season
241 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,818
Higher = more heating needed
Cooling Degree Days
2,155
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Portland's climate means for you
Portland runs 63°F a year - peaking in July, coldest in January.
- Gardeners get about 241 frost-free days, with the last spring freeze near March 14 - plan the planting calendar around it, not the regional average.
- Energy bills track 2,818 heating and 2,155 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: Portland, AR
In Portland, Arkansas, the NOAA 1991–2020 climate normals put the annual average temperature at 63°F, ranging from a mean daily high of 74°F to a mean daily low of 53°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00035866, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Portland receives roughly 56.4 inches of precipitation each year, with 1.0 inches typically falling as snow. The frost-free season averages 241 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 14 and the first fall freeze near November 10. For energy use, 2,818 heating degree days and 2,155 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Portland scores 87/100 (Excellent), 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 Portland, AR? ▼
The average annual temperature in Portland, Arkansas is 63°F. The warmest month averages 91°F (33°C) and the coldest averages 33°F (0°C).
How much rain does Portland get? ▼
Portland receives 56.4 inches of precipitation annually, including 1.0 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Portland? ▼
Portland has a climate comfort score of 87/100 (Excellent), milder than 89% of U.S. cities in the PlainClimate database.
When is the growing season in Portland? ▼
Portland has approximately 241 frost-free days per year, with the last spring freeze around March 14 and the first fall freeze around November 10.
How much energy does heating and cooling require in Portland? ▼
Portland has 2,818 heating degree days and 2,155 cooling degree days annually, a fairly balanced heating/cooling split. 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 Portland climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00035866 near Portland.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00035866. 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.