From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. 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. The least muggy day of the year is January 30, with muggy conditions 14% of the time. We report snowfall in liquid-equivalent terms. Monthly averages Petersburg Longitude: -77.4019, Latitude: 37.2279 Average weather Petersburg, VA - 23803. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. January has the lowest average temperature of the year. Rain falls throughout the year in St. Petersburg. 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. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. The highest chance of a day with snow alone is 12% on December 19. Click on each chart for more information. 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. 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 black line is the percentage chance that a given day is within the growing season. The cloudier part of the year begins around June 6 and lasts for 3.8 months, ending around October 1. The snowless period of the year lasts for 5.8 months, from April 21 to October 16. Forecast - St Petersburg. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. The US average is 28 inches of snow per year. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. This report illustrates the typical weather in St. Petersburg, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. The average hourly wind speed in St. Petersburg experiences significant seasonal variation over the course of the year. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. 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. St Petersburg Weather averages for holidays in 2020/2021. Get the monthly weather forecast for St. Petersburg, FL, including daily high/low, historical averages, to help you plan ahead. Statistics based on observations taken between 10/2006 - 08/2020 daily from 7am to 7pm local time. Over the course of the year, the temperature typically varies from 14°F to 73°F and is rarely below -8°F or above 83°F. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Mean Temp: 43 °F. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The cloudier part of the year begins around September 29 and lasts for 6.6 months, ending around April 18. The topography within 2 miles of Saint Petersburg is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 41 feet. In this report, we use a base of 50°F and a cap of 86°F. Low Temp: 17 °F. 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. The percentage of time spent in various temperature bands. 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