Climate Comfort Score
67/100
Good
Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →
30-year climate normals from 1 weather station (1991-2020).
Hannibal Locks & Dam, Ohio has an average annual temperature of 52°F and a climate comfort score of 67/100 (Good). Annual precipitation totals 45.0". Based on NOAA 30-year normals (1991–2020).
Avg Temperature
52°F (11°C)
Avg High
63°F
Avg Low
41°F
Annual Precip
45.0"
Comfort Score
67/100
Good
Climate Comfort Score
67/100
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.
How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Hannibal Locks & Dam captures average conditions across the spread shown — the most recent decade is 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
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
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.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Hannibal Locks & Dam receives roughly 45.0 inches of precipitation each year, predominantly as rainfall. Growing-season length varies with elevation and microclimate, with the last spring freeze near April 26 and the first fall freeze near October 26. For energy use, 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 67/100 (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.