Putnam, Texas climate: Normal weather by month, frost dates and records

Putnam's normal year runs from 32°F January nights to 96°F July afternoons, with 29.0 inches of precipitation and 4 inches of snow a year. (NOAA 1991-2020 normals)

In metric: a yearly mean of 18.1°C, January lows of 0°C, July highs of 35°C, 736 mm of precipitation a year.

  • NOAA stationPutnam
  • Station IDUSC00417327
  • Location32.37°N 99.19°W
  • Elevation1,621 ft (494 m)
  • Population77

On October 22, the normal high in Putnam is 76°F and the normal low 51°F, and the chance of measurable rain or snow is 18%.

Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Putnam.

  1. Jan 57° 32°
  2. Feb 61° 35°
  3. Mar 69° 43°
  4. Apr 78° 51°
  5. May 84° 60°
  6. Jun 91° 69°
  7. Jul 96° 72°
  8. Aug 96° 71°
  9. Sep 88° 64°
  10. Oct 78° 53°
  11. Nov 67° 42°
  12. Dec 58° 34°

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 Putnam each month?

July is the warmest month, with normal highs of 96°F; January the coldest, with normal lows of 32°F. The most precipitation falls in May (3.89 in), the least in January (1.20 in).

Putnam monthly normals, 1991-2020 (°F, inches)
MonthHighLowMeanPrecip.SnowWet days90°F daysFreezing nightsDaylight
January 57°F32°F44.6°F 1.200.7 4<11610 h 10 min
February 61°F35°F48.0°F 1.771.0 5<11111 h
March 69°F43°F55.9°F 2.230.2 51512 h
April 78°F51°F64.1°F 2.080.2 53113 h
May 84°F60°F72.3°F 3.890.0 89<113 h 50 min
June 91°F69°F79.8°F 3.660.0 619<114 h 20 min
July 96°F72°F83.7°F 2.360.0 527<114 h 10 min
August 96°F71°F83.4°F 2.420.0 626<113 h 20 min
September 88°F64°F75.9°F 2.920.0 515<112 h 20 min
October 78°F53°F65.7°F 2.870.0 54111 h 30 min
November 67°F42°F54.4°F 2.150.6 5<1610 h 30 min
December 58°F34°F46.0°F 1.431.1 4<11410 h
Year (annual)77°F52°F64.5°F28.983.86210553
The same normals in °C and millimetres
Putnam monthly normals, 1991-2020 (°C, mm, snow in cm)
MonthHighLowMeanPrecip.Snow
January14°C0°C7.0°C30 mm2 cm
February16°C2°C8.9°C45 mm3 cm
March21°C6°C13.3°C57 mm1 cm
April25°C10°C17.8°C53 mm1 cm
May29°C16°C22.4°C99 mm0 cm
June33°C20°C26.6°C93 mm0 cm
July35°C22°C28.7°C60 mm0 cm
August35°C22°C28.6°C61 mm0 cm
September31°C18°C24.4°C74 mm0 cm
October26°C12°C18.7°C73 mm0 cm
November19°C5°C12.4°C55 mm2 cm
December15°C1°C7.8°C36 mm3 cm
Normal daily high and low by month, Putnam
Normal precipitation by month, Putnam (inches)

Source: NOAA NCEI 1991-2020 monthly normals, station USC00417327; 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 Putnam?

Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, November has the fewest days with rain (5).

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 USC00417327.

When is the last frost in Putnam?

In Putnam, the last spring frost (32°F) comes after March 27 in half of years and after April 16 in one year in ten; the first autumn frost comes before November 7 in half of years and before October 25 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 271 year in 10 after April 16; 9 in 10 after March 7
First autumn frost, half of years before
November 71 year in 10 before October 25; 9 in 10 before November 22

NOAA puts the median frost-free season at 225 days, and the season without a hard freeze (28°F) at 247 days.

A hard freeze (28°F) comes after March 14 in half of springs and before November 16 in half of autumns.

The USDA's 2023 Plant Hardiness Zone Map puts Putnam in zone 8a in ZIP code 76469, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Putnam's NOAA station is in zone 8a: the coldest night of a typical year reaches 13°F (30 complete years).

Frost dates for every NOAA station in Texas · Frost dates by ZIP code

Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00417327; 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 Putnam?

In a normal year in Putnam, 105 days a year reach 90°F (23 of them 100°F or more), 53 nights fall to 32°F or colder and 62 days bring measurable precipitation.

Days at 90°F or more
105a normal year
Days at 100°F or more
23a normal year
Nights at 32°F or colder
53a normal year
Days that stay below freezing
3high of 32°F or less
Days with 0.01 inch of precipitation
62a normal year
Days with 1 inch of snow or more
2a normal year

The highest temperature in this station's record (since 1963) is 111°F, on August 23, 2024; the lowest is −8°F, on December 23, 1989.

The wettest calendar year on that record is 2007, with 42.96 in; the snowiest season is 2009–10, with 21.5 inches.

Source: NOAA NCEI 1991-2020 annual normals, station USC00417327; records: ACIS (NOAA Regional Climate Centers), station USC00417327. Records use complete months only; a month missing more than three days is left out.

How sunny is Putnam?

Over a year 83% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Putnam, 5.1 kWh per square metre a day. July is the sunniest month (88%) and February the cloudiest (76%).

Putnam: sunshine by month (NASA POWER, 2001-2020)
MonthShare of clear-sky sunshineSunshine, kWh/m² a day
January79%3.2
February76%3.9
March79%5.0
April82%6.1
May81%6.5
June88%7.2
July88%7.0
August87%6.4
September84%5.3
October83%4.3
November82%3.4
December78%2.9

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 Putnam need?

A normal year in Putnam brings 2,606 heating degree days, 51% fewer than the median U.S. place (5,373), and 2,454 cooling degree days, 2.7 times the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,055 growing degree days a year above 50°F.

Putnam: normal heating and cooling degree days by month (base 65°F)
MonthHeatingCooling
January6321
February4805
March30926
April12093
May26250
June1444
July0580
August0572
September10338
October104125
November33618
December5912
Year (annual)2,6062,454

Source: NOAA NCEI 1991-2020 monthly normals, station USC00417327. 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 Putnam been warmer than normal lately?

2025 averaged 66.1°F, 1.6°F above the 1991-2020 normal of 64.5°F. 4 of the 5 complete years since 2021 ran warmer than the normal.

Putnam: each recent year's mean against the 1991-2020 normal (64.5°F)
YearMeanAgainst normalPrecip.Snow
202163.8°F−0.7°F30.9913.7
202265.5°F+1.0°F21.421.4
202366.5°F+2.0°F28.391.0
202466.7°F+2.2°F39.090.2
202566.1°F+1.6°F24.392.0

Over 59 complete years from 1964 to 2025, the station's annual mean temperature rose at a fitted 7.1°F per century (+0.40°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.

Source: observed years: ACIS, station USC00417327; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.

How does Putnam's climate compare?

Putnam is warmer than 106 of the other 320 places with their own NOAA record in Texas, and wetter than 146. Across the 7,247 U.S. stations with normals, its annual mean of 64.5°F is warmer than 87%.

In the Köppen classification computed from these normals, Putnam 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 Putnam share this climate record?

2 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.

  • Baird, TX1,545 people · 12 mi W
  • Moran, TX234 people · 13 mi N

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 Putnam's climate

What is the coldest month in Putnam?

January, with a normal high of 57°F and a normal low of 32°F. The warmest is July (96°F by day, 72°F at night).

Does it snow in Putnam?

Yes: 4 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in December (1.1 inches).

What is the rainiest month in Putnam?

May, with 3.89 in of precipitation in a normal year; the driest is January with 1.20 in.

What plant hardiness zone is Putnam in?

The USDA's 2023 map puts Putnam in zone 8a in ZIP code 76469, the nearest ZIP area. By the same method at Putnam's NOAA station, the coldest night of a typical year reaches 13°F (30 years, 1991-2020): zone 8a.

How late can frost come in Putnam?

In half of years the last 32°F night comes after March 27; in one year in ten it comes after April 16. Waiting until April 16 leaves about a one-in-ten chance of a later frost.

Nearby and next

Download these normals (CSV) · JSON · How these figures are made