Calhoun, Louisiana climate: Normal weather by month, frost dates and records
Calhoun's normal year runs from 33°F January nights to 93°F July afternoons, with 57.6 inches of precipitation and less than an inch of snow (0.1 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.7°C, January lows of 0°C, July highs of 34°C, 1,462 mm of precipitation a year.
- NOAA stationCalhoun Research Station
- Station IDUSC00161411
- Location32.51°N 92.35°W
- Elevation120 ft (37 m)
- From the centerunder 1 mile
- Population (census place)329
On October 14, the normal high in Calhoun is 79°F and the normal low 50°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Calhoun.
- Jan 57° 33°
- Feb 61° 36°
- Mar 69° 43°
- Apr 76° 50°
- May 83° 59°
- Jun 90° 67°
- Jul 93° 70°
- Aug 94° 69°
- Sep 89° 63°
- Oct 78° 50°
- Nov 67° 41°
- Dec 59° 35°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Calhoun each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 33°F. The most precipitation falls in January (5.70 in), the least in August (3.51 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 57°F | 33°F | 44.8°F | 5.70 | 9 | <1 | 17 | 10 h 10 min |
| February | 61°F | 36°F | 48.3°F | 4.98 | 9 | <1 | 13 | 11 h |
| March | 69°F | 43°F | 56.0°F | 5.47 | 9 | <1 | 5 | 12 h |
| April | 76°F | 50°F | 63.2°F | 5.69 | 7 | <1 | 1 | 13 h |
| May | 83°F | 59°F | 71.4°F | 5.39 | 8 | 4 | <1 | 13 h 50 min |
| June | 90°F | 67°F | 78.5°F | 4.36 | 9 | 20 | <1 | 14 h 20 min |
| July | 93°F | 70°F | 81.6°F | 4.01 | 8 | 25 | <1 | 14 h 10 min |
| August | 94°F | 69°F | 81.3°F | 3.51 | 6 | 26 | <1 | 13 h 20 min |
| September | 89°F | 63°F | 75.7°F | 3.58 | 6 | 15 | <1 | 12 h 20 min |
| October | 78°F | 50°F | 64.0°F | 4.66 | 7 | 2 | 1 | 11 h 30 min |
| November | 67°F | 41°F | 53.9°F | 4.71 | 8 | <1 | 6 | 10 h 30 min |
| December | 59°F | 35°F | 46.8°F | 5.50 | 9 | <1 | 15 | 10 h |
| Year (annual) | 76°F | 51°F | 63.8°F | 57.56 | 95 | 93 | 57 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | 0°C | 7.1°C | 145 mm |
| February | 16°C | 2°C | 9.1°C | 126 mm |
| March | 21°C | 6°C | 13.3°C | 139 mm |
| April | 25°C | 10°C | 17.3°C | 145 mm |
| May | 29°C | 15°C | 21.9°C | 137 mm |
| June | 32°C | 19°C | 25.8°C | 111 mm |
| July | 34°C | 21°C | 27.6°C | 102 mm |
| August | 34°C | 21°C | 27.4°C | 89 mm |
| September | 32°C | 17°C | 24.3°C | 91 mm |
| October | 26°C | 10°C | 17.8°C | 118 mm |
| November | 20°C | 5°C | 12.2°C | 120 mm |
| December | 15°C | 1°C | 8.2°C | 140 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00161411; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Calhoun?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, October has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00161411.
When is the last frost in Calhoun?
In Calhoun, the last spring frost (32°F) comes after March 28 in half of years and after April 14 in one year in ten; the first autumn frost comes before November 5 in half of years and before October 24 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- March 281 year in 10 after April 14; 9 in 10 after March 4
- First autumn frost, half of years before
- November 51 year in 10 before October 24; 9 in 10 before November 23
NOAA puts the median frost-free season at 224 days, and the season without a hard freeze (28°F) at 250 days.
A hard freeze (28°F) comes after March 10 in half of springs and before November 18 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Calhoun in zone 8b in ZIP code 71225, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Calhoun's NOAA station is in zone 8b: the coldest night of a typical year reaches 16°F (21 complete years).
Frost dates for every NOAA station in Louisiana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00161411; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Calhoun?
In a normal year in Calhoun, 93 days a year reach 90°F (9 of them 100°F or more), 57 nights fall to 32°F or colder and 95 days bring measurable precipitation.
- Days at 90°F or more
- 93a normal year
- Days at 100°F or more
- 9a normal year
- Nights at 32°F or colder
- 57a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 95a normal year
The highest temperature in this station's record (since 1892) is 110°F, on August 18, 1909; the lowest is −13°F, on February 13, 1899.
The wettest calendar year on that record is 2004, with 78.58 in; the snowiest season is 1948–49, with 11.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00161411; records: ACIS (NOAA Regional Climate Centers), station USC00161411. Records use complete months only; a month missing more than three days is left out.
How sunny is Calhoun?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Calhoun, 4.6 kWh per square metre a day. August is the sunniest month (83%) and February the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 2.7 |
| February | 64% | 3.1 |
| March | 71% | 4.3 |
| April | 76% | 5.4 |
| May | 79% | 6.0 |
| June | 82% | 6.4 |
| July | 82% | 6.2 |
| August | 83% | 5.8 |
| September | 82% | 5.1 |
| October | 80% | 4.1 |
| November | 76% | 3.1 |
| December | 69% | 2.4 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Calhoun need?
A normal year in Calhoun brings 2,590 heating degree days, 52% fewer than the median U.S. place (5,373), and 2,178 cooling degree days, 2.4 times the median (908). Four months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,729 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 629 | 3 |
| February | 472 | 4 |
| March | 300 | 19 |
| April | 124 | 70 |
| May | 22 | 219 |
| June | 0 | 405 |
| July | 0 | 515 |
| August | 0 | 505 |
| September | 7 | 328 |
| October | 121 | 91 |
| November | 348 | 14 |
| December | 567 | 5 |
| Year (annual) | 2,590 | 2,178 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00161411. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Calhoun been warmer than normal lately?
Over 82 complete years from 1893 to 2015, the station's annual mean temperature rose at a fitted 0.5°F per century (+0.03°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Calhoun's climate compare?
Calhoun is warmer than 2 of the other 64 places with their own NOAA record in Louisiana, and wetter than 13. Across the 7,247 U.S. stations with normals, its annual mean of 63.8°F is warmer than 85%.
In the Köppen classification computed from these normals, Calhoun is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Calhoun share this climate record?
4 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Claiborne, LA12,647 people · 9 mi E
- Chatham, LA480 people · 15 mi SW
- Eros, LA134 people · 9 mi SW
- Downsville, LA113 people · 9 mi NW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Calhoun's climate
What is the coldest month in Calhoun?
January, with a normal high of 57°F and a normal low of 33°F. The warmest is July (93°F by day, 70°F at night).
Does it snow in Calhoun?
Rarely: NOAA's normal is 0.1 inch a year.
What is the rainiest month in Calhoun?
January, with 5.70 in of precipitation in a normal year; the driest is August with 3.51 in.
What plant hardiness zone is Calhoun in?
The USDA's 2023 map puts Calhoun in zone 8b in ZIP code 71225, the nearest ZIP area. By the same method at Calhoun's NOAA station, the coldest night of a typical year reaches 16°F (21 years, 1991-2020): zone 8b.
How late can frost come in Calhoun?
In half of years the last 32°F night comes after March 28; in one year in ten it comes after April 14. Waiting until April 14 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Louisiana climateThe statewide normals and every place in the state
- Ruston, LA17 miles from this station, 64.8°F a year
- Monroe, LA18 miles from this station, 65.7°F a year
- Farmerville, LA19 miles from this station, 64.9°F a year
- Columbia, LA28 miles from this station, 65.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made