Climate and Average Weather Year Round in Oakland City United States

In Oakland City, the summers are long, warm, and muggy; the winters are very cold, snowy, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 25°F to 87°F and is rarely below 8°F or above 93°F.

Based on the tourism score, the best time of year to visit Oakland City for warm-weather activities is from late May to late September.

The hot season lasts for 4.0 months, from May 21 to September 22, with an average daily high temperature above 77°F. The hottest month of the year in Oakland City is July, with an average high of 87°F and low of 68°F.

The cold season lasts for 3.0 months, from November 30 to February 28, with an average daily high temperature below 49°F. The coldest month of the year in Oakland City is January, with an average low of 26°F and high of 40°F.

In Oakland City, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Oakland City begins around June 14 and lasts for 4.5 months, ending around October 31.

The clearest month of the year in Oakland City is August, during which on average the sky is clear, mostly clear, or partly cloudy 68% of the time.

The cloudier part of the year begins around October 31 and lasts for 7.5 months, ending around June 14.

The cloudiest month of the year in Oakland City is January, during which on average the sky is overcast or mostly cloudy 54% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Oakland City varies throughout the year.

The wetter season lasts 4.5 months, from March 21 to August 7, with a greater than 31% chance of a given day being a wet day. The month with the most wet days in Oakland City is May, with an average of 12.3 days with at least 0.04 inches of precipitation.

The drier season lasts 7.5 months, from August 7 to March 21. The month with the fewest wet days in Oakland City is January, with an average of 7.0 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Oakland City is May, with an average of 12.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 41% on May 11.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Oakland City experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Oakland City. The month with the most rain in Oakland City is May, with an average rainfall of 4.5 inches.

The month with the least rain in Oakland City is January, with an average rainfall of 2.4 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Oakland City experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 3.6 months, from November 28 to March 14, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Oakland City is January, with an average snowfall of 3.2 inches.

The snowless period of the year lasts for 8.4 months, from March 14 to November 28. The least snow falls around July 19, with an average total accumulation of 0.0 inches.

The length of the day in Oakland City varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 30 minutes of daylight; the longest day is June 20, with 14 hours, 50 minutes of daylight.

The earliest sunrise is at 5:25 AM on June 13, and the latest sunrise is 1 hour, 52 minutes later at 7:17 AM on November 2. The earliest sunset is at 4:28 PM on December 6, and the latest sunset is 3 hours, 48 minutes later at 8:17 PM on June 27.

Daylight saving time (DST) is observed in Oakland City during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Oakland City experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.1 months, from May 18 to September 22, during which time the comfort level is muggy, oppressive, or miserable at least 18% of the time. The month with the most muggy days in Oakland City is July, with 21.4 days that are muggy or worse.

The month with the fewest muggy days in Oakland City is February, with 0.0 days that are muggy or worse.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Oakland City experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 7.4 months, from October 11 to May 24, with average wind speeds of more than 8.4 miles per hour. The windiest month of the year in Oakland City is March, with an average hourly wind speed of 10.7 miles per hour.

The calmer time of year lasts for 4.6 months, from May 24 to October 11. The calmest month of the year in Oakland City is August, with an average hourly wind speed of 6.3 miles per hour.

The predominant average hourly wind direction in Oakland City varies throughout the year.

The wind is most often from the west for 1.0 months, from January 14 to February 14, with a peak percentage of 32% on January 16. The wind is most often from the south for 5.5 months, from February 14 to July 31 and for 4.6 months, from August 25 to January 14, with a peak percentage of 39% on May 14. The wind is most often from the north for 3.6 weeks, from July 31 to August 25, with a peak percentage of 30% on August 7.

To characterize how pleasant the weather is in Oakland City throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Oakland City for general outdoor tourist activities is from late May to late September, with a peak score in the last week of August.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Oakland City for hot-weather activities is from mid June to late August, with a peak score in the last week of July.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Oakland City typically lasts for 6.6 months (204 days), from around April 5 to around October 25, rarely starting before March 18 or after April 22, and rarely ending before October 8 or after November 12.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Oakland City should appear around March 17, only rarely appearing before March 3 or after April 3.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.3 months, from April 22 to August 31, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest month of the year in Oakland City is July, with an average of 6.7 kWh.

The darker period of the year lasts for 3.1 months, from November 7 to February 9, with an average daily incident shortwave energy per square meter below 2.9 kWh. The darkest month of the year in Oakland City is December, with an average of 2.0 kWh.

For the purposes of this report, the geographical coordinates of Oakland City are 38.339 deg latitude, -87.345 deg longitude, and 456 ft elevation.

The topography within 2 miles of Oakland City contains only modest variations in elevation, with a maximum elevation change of 125 feet and an average elevation above sea level of 448 feet. Within 10 miles also contains only modest variations in elevation (246 feet). Within 50 miles contains only modest variations in elevation (597 feet).

The area within 2 miles of Oakland City is covered by cropland (68%), artificial surfaces (16%), and trees (12%), within 10 miles by cropland (58%) and trees (33%), and within 50 miles by cropland (70%) and trees (25%).