Climate Comfort Score
68/100
Good
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Hannibal Locks & Dam
Hannibal Locks & Dam, Ohio averages 52°F a year and scores 68/100 on the comfort index - good, milder than 58% of U.S. cities.
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
52°F (11°C)
Avg High
63°F
Avg Low
41°F
Annual Precip
45.0"
Comfort Score
68/100
Good
Climate Comfort Score
68/100
Good
Avg Annual Temperature
52°F
30-year mean (NOAA NCEI)
Annual Precipitation
45.0"
Liquid-equivalent total
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Hannibal Locks & Dam area.
Hannibal Locks & Dam's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 42% higher than 58% 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
Hannibal Locks & Dam's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running warmer than the 30-year mean.
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 38°F (3°C) | 20°F (-6°C) | 29°F (-1°C) | 3.7" | 25.8 | 0.0 |
| February | 42°F (5°C) | 22°F (-5°C) | 32°F (0°C) | 3.1" | 24.0 | 0.0 |
| March | 51°F (11°C) | 29°F (-2°C) | 40°F (4°C) | 3.9" | 20.1 | 0.0 |
| April | 64°F (18°C) | 38°F (3°C) | 51°F (11°C) | 3.9" | 7.9 | 0.0 |
| May | 73°F (23°C) | 48°F (9°C) | 61°F (16°C) | 4.5" | 0.6 | 0.3 |
| June | 80°F (27°C) | 57°F (14°C) | 69°F (20°C) | 4.5" | 0.0 | 1.5 |
| July | 83°F (29°C) | 62°F (17°C) | 73°F (23°C) | 4.7" | 0.0 | 4.4 |
| August | 83°F (28°C) | 61°F (16°C) | 72°F (22°C) | 3.6" | 0.0 | 4.0 |
| September | 77°F (25°C) | 54°F (12°C) | 66°F (19°C) | 3.7" | 0.0 | 1.2 |
| October | 66°F (19°C) | 43°F (6°C) | 54°F (12°C) | 3.0" | 2.5 | 0.1 |
| November | 53°F (12°C) | 32°F (0°C) | 43°F (6°C) | 2.9" | 15.8 | 0.0 |
| December | 43°F (6°C) | 26°F (-4°C) | 34°F (1°C) | 3.6" | 23.6 | 0.0 |
Average monthly rainfall
14.6 days with precipitation
12.7 days with precipitation
12.6 days with precipitation
12.5 days with precipitation
13.3 days with precipitation
11.4 days with precipitation
10.6 days with precipitation
8.6 days with precipitation
8.2 days with precipitation
9.9 days with precipitation
10.4 days with precipitation
13.9 days with precipitation
First Fall Freeze
October 26
50% probability date
Last Spring Freeze
April 26
50% probability date
Growing Season
183 days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,507
Higher = more heating needed
Cooling Degree Days
743
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Hannibal Locks & Dam's climate means for you
Hannibal Locks & Dam runs 52°F a year - peaking in July, coldest in January.
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
The NOAA 1991–2020 climate normals describe Hannibal Locks & Dam, Ohio as a location with an annual average temperature of 52°F, ranging from a mean daily high of 63°F to a mean daily low of 41°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00333500, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Anyone planning to live, garden, or travel in Hannibal Locks & Dam should weigh precipitation alongside temperature: the annual average runs 45.0 inches, predominantly as rainfall. The frost-free season averages 183 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 26 and the first fall freeze near October 26. And on the energy front, 5,507 heating degree days and 743 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Hannibal Locks & Dam scores 68/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00333500. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
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.