Climate Comfort Score
90/100
Excellent
NOAA 1991–2020 normals 69°F annual avg Public-domain federal data
Lake Arthur, LA Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 69°F
- Avg annual temp
- 90/100
- Comfort score
- 59.9"
- Annual precip
- 304d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Lake Arthur
Lake Arthur, Louisiana averages 69°F a year and scores 90/100 on the comfort index - excellent, milder than 94% of U.S. cities.
- 69°F
- yearly average temperature, NOAA normal
- 90/100
- comfort score, milder than 94% of U.S. cities
- 59.9"
- yearly precipitation total
- 304 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
69°F (21°C)
Avg High
78°F
Avg Low
60°F
Annual Precip
59.9"
Annual Snow
0.1"
Comfort Score
90/100
Excellent
Avg Annual Temperature
69°F
30-year mean (NOAA NCEI)
Annual Precipitation
59.9"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Lake Arthur) 90.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Lake Arthur area.
How Lake Arthur compares to every U.S. city
Lake Arthur's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
90 Top 6% higher than 94% 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 Lake Arthur
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Lake Arthur'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 | 61°F (16°C) | 44°F (6°C) | 52°F (11°C) | 5.6" | 0.0" | 4.7 | 0.0 |
| February | 66°F (19°C) | 47°F (8°C) | 56°F (13°C) | 4.2" | 0.0" | 1.8 | 0.0 |
| March | 72°F (22°C) | 53°F (12°C) | 62°F (17°C) | 3.1" | 0.0" | 0.6 | 0.0 |
| April | 78°F (25°C) | 60°F (15°C) | 69°F (20°C) | 4.8" | 0.0" | 0.0 | 0.2 |
| May | 84°F (29°C) | 68°F (20°C) | 76°F (24°C) | 4.6" | 0.0" | 0.0 | 3.7 |
| June | 90°F (32°C) | 73°F (23°C) | 82°F (28°C) | 6.2" | 0.0" | 0.0 | 16.4 |
| July | 91°F (33°C) | 75°F (24°C) | 83°F (28°C) | 5.0" | 0.0" | 0.0 | 22.5 |
| August | 92°F (33°C) | 74°F (23°C) | 83°F (28°C) | 6.1" | 0.0" | 0.0 | 23.6 |
| September | 89°F (32°C) | 70°F (21°C) | 79°F (26°C) | 5.8" | 0.0" | 0.0 | 13.9 |
| October | 81°F (27°C) | 61°F (16°C) | 71°F (22°C) | 4.5" | 0.0" | 0.0 | 2.2 |
| November | 71°F (22°C) | 51°F (10°C) | 61°F (16°C) | 5.3" | 0.0" | 0.4 | 0.0 |
| December | 63°F (17°C) | 45°F (7°C) | 54°F (12°C) | 4.8" | 0.1" | 2.5 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 5.6"
12.3 days with precipitation
February 4.2"
11.1 days with precipitation
March 3.1"
10.1 days with precipitation
April 4.8"
7.6 days with precipitation
May 4.6"
7.3 days with precipitation
June 6.2"
12.3 days with precipitation
July 5.0"
13.0 days with precipitation
August 6.1"
12.7 days with precipitation
September 5.8"
10.9 days with precipitation
October 4.5"
9.3 days with precipitation
November 5.3"
10.3 days with precipitation
December 4.8"
Snow: 0.1"
12.7 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
December 11
50% probability date
Last Spring Freeze
February 10
50% probability date
Growing Season
304 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,394
Higher = more heating needed
Cooling Degree Days
2,892
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Lake Arthur's climate means for you
Lake Arthur runs 69°F a year - peaking in July, coldest in January.
- Gardeners get about 304 frost-free days, with the last spring freeze near February 10 - plan the planting calendar around it, not the regional average.
- Energy bills track 1,394 heating and 2,892 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: Lake Arthur, LA
Lake Arthur, Louisiana runs an annual average of 69°F, ranging from a mean daily high of 78°F to a mean daily low of 60°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USC00165065, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Lake Arthur averages 59.9 inches of precipitation a year, with negligible snowfall, and that matters as much to daily life here as temperature does. The frost-free season averages 304 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near February 10 and the first fall freeze near December 11. As for energy demand, 1,394 heating degree days and 2,892 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Lake Arthur scores 90/100 (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 January-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 Lake Arthur, LA? ▼
The average annual temperature in Lake Arthur, Louisiana is 69°F. The warmest month averages 92°F (33°C) and the coldest averages 44°F (6°C).
How much rain does Lake Arthur get? ▼
Lake Arthur receives 59.9 inches of precipitation annually, including 0.1 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Lake Arthur? ▼
Lake Arthur has a climate comfort score of 90/100 (Excellent), milder than 94% of U.S. cities in the PlainClimate database.
When is the growing season in Lake Arthur? ▼
Lake Arthur has approximately 304 frost-free days per year, with the last spring freeze around February 10 and the first fall freeze around December 11.
How much energy does heating and cooling require in Lake Arthur? ▼
Lake Arthur has 1,394 heating degree days and 2,892 cooling degree days annually, a cooling-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 Lake Arthur climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00165065 near Lake Arthur.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00165065. 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.