PlainClimate
NOAA 1991–2020 normals 46°F annual avg Public-domain federal data

Humboldt Wtp, IA Climate

Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →

46°F
Avg annual temp
64/100
Comfort score
35.0"
Annual precip
165d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Humboldt Wtp

Humboldt Wtp, Iowa averages 46°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.

46°F
average temperature, NOAA 1991-2020 normal
64/100
comfort score, milder than 51% of U.S. cities
35.0"
yearly precipitation total
165 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

46°F (8°C)

Avg High

55°F

Avg Low

37°F

Annual Precip

35.0"

Comfort Score

64/100

Good

Climate Comfort Score

64/100

Good

Avg Annual Temperature

46°F

30-year mean (NOAA NCEI)

Annual Precipitation

35.0"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Humboldt Wtp) 64.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Humboldt Wtp area.

How Humboldt Wtp compares to every U.S. city

Humboldt Wtp's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

64 Top 49% higher than 51% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). This entry sits in this band. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

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 Humboldt Wtp

Methodology

Since 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Humboldt Wtp's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • 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
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 24°F (-4°C) 9°F (-13°C) 16°F (-9°C)
February 29°F (-1°C) 12°F (-11°C) 21°F (-6°C)
March 43°F (6°C) 25°F (-4°C) 34°F (1°C)
April 57°F (14°C) 36°F (2°C) 46°F (8°C)
May 68°F (20°C) 49°F (9°C) 58°F (15°C)
June 78°F (25°C) 59°F (15°C) 69°F (20°C)
July 81°F (27°C) 63°F (17°C) 72°F (22°C)
August 79°F (26°C) 60°F (16°C) 70°F (21°C)
September 73°F (23°C) 51°F (11°C) 62°F (17°C)
October 60°F (16°C) 39°F (4°C) 50°F (10°C)
November 43°F (6°C) 26°F (-3°C) 35°F (2°C)
December 30°F (-1°C) 15°F (-10°C) 22°F (-5°C)

Monthly Precipitation

Average monthly rainfall

January 0.9"
February 1.0"
March 2.0"
April 3.3"
May 4.8"
June 5.5"
July 4.2"
August 4.5"
September 3.3"
October 2.5"
November 1.6"
December 1.3"

Frost Dates & Growing Season

First Fall Freeze

October 9

50% probability date

Last Spring Freeze

April 27

50% probability date

Growing Season

165 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

7,433

Higher = more heating needed

Cooling Degree Days

622

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Humboldt Wtp's climate means for you

Humboldt Wtp runs 46°F a year - peaking in July, coldest in January.

  • Gardeners get about 165 frost-free days, with the last spring freeze near April 27 - plan the planting calendar around it, not the regional average.
  • Energy bills track 7,433 heating and 622 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: Humboldt Wtp, IA

In Humboldt Wtp, Iowa, the NOAA 1991–2020 climate normals put the annual average temperature at 46°F, ranging from a mean daily high of 55°F to a mean daily low of 37°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00133980, 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. Humboldt Wtp receives roughly 35.0 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 165 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 27 and the first fall freeze near October 9. For energy use, 7,433 heating degree days and 622 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Humboldt Wtp scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Humboldt Wtp, IA?
The average annual temperature in Humboldt Wtp, Iowa is 46°F. The warmest month averages 81°F (27°C) and the coldest averages 9°F (-13°C).
How much rain does Humboldt Wtp get?
Humboldt Wtp receives 35.0 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Humboldt Wtp?
Humboldt Wtp has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Humboldt Wtp?
Humboldt Wtp has approximately 165 frost-free days per year, with the last spring freeze around April 27 and the first fall freeze around October 9.
How much energy does heating and cooling require in Humboldt Wtp?
Humboldt Wtp has 7,433 heating degree days and 622 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 Humboldt Wtp climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00133980 near Humboldt Wtp.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00133980. For informational purposes only.

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.