Average Weather at Point Piedras Blanca California, United States
At Point Piedras Blanca, the summers are short, comfortable, dry, and mostly clear and the winters are long, cold, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 48°F to 67°F and is rarely below 43°F or above 77°F.
The warm season lasts for 1.6 months, from September 4 to October 24, with an average daily high temperature above 65°F. The hottest day of the year is October 2, with an average high of 67°F and low of 55°F.
The cool season lasts for 5.6 months, from December 5 to May 25, with an average daily high temperature below 60°F. The coldest day of the year is April 1, with an average low of 48°F and high of 59°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. 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.
Average Hourly Temperature
At Point Piedras Blanca, 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 at Point Piedras Blanca begins around May 8 and lasts for 5.7 months, ending around October 31. On August 8, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 92% of the time, and overcast or mostly cloudy 8% of the time.
The cloudier part of the year begins around October 31 and lasts for 6.3 months, ending around May 8. On February 17, the cloudiest day of the year, the sky is overcast or mostly cloudy 48% of the time, and clear, mostly clear, or partly cloudy 52% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Point Piedras Blanca varies throughout the year.
The wetter season lasts 4.5 months, from November 17 to April 1, with a greater than 13% chance of a given day being a wet day. The chance of a wet day peaks at 26% on February 20.
The drier season lasts 7.5 months, from April 1 to November 17. The smallest chance of a wet day is 0% on July 19.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 26% on February 20.
Daily Chance of Precipitation
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. Point Piedras Blanca experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 6.5 months, from October 13 to April 28, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around February 15, with an average total accumulation of 3.0 inches.
The rainless period of the year lasts for 5.5 months, from April 28 to October 13. The least rain falls around July 15, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
The length of the day at Point Piedras Blanca varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 45 minutes of daylight; the longest day is June 20, with 14 hours, 35 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:48 AM on June 12, and the latest sunrise is 1 hour, 42 minutes later at 7:30 AM on November 4. The earliest sunset is at 4:51 PM on December 5, and the latest sunset is 3 hours, 33 minutes later at 8:25 PM on June 28.
Daylight saving time (DST) is observed at Point Piedras Blanca during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.
Sunrise & Sunset with Twilight and Daylight Saving Time
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.
The perceived humidity level at Point Piedras Blanca, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
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 at Point Piedras Blanca experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.8 months, from March 13 to July 6, with average wind speeds of more than 9.6 miles per hour. The windiest day of the year is May 24, with an average hourly wind speed of 11.0 miles per hour.
The calmer time of year lasts for 8.2 months, from July 6 to March 13. The calmest day of the year is October 29, with an average hourly wind speed of 8.1 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Point Piedras Blanca varies throughout the year.
The wind is most often from the west for 4.1 months, from May 24 to September 28, with a peak percentage of 61% on July 30. The wind is most often from the north for 7.9 months, from September 28 to May 24, with a peak percentage of 43% on January 1.
Point Piedras Blanca is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.0 months, from July 31 to November 1, with an average temperature above 59°F. The day of the year with the warmest water is September 24, with an average temperature of 60°F.
The time of year with cooler water lasts for 3.2 months, from March 2 to June 9, with an average temperature below 55°F. The day of the year with the coolest water is April 16, with an average temperature of 54°F.
Average Water Temperature
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 extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.7 months, from May 3 to August 24, with an average daily incident shortwave energy per square meter above 7.3 kWh. The brightest day of the year is June 23, with an average of 8.5 kWh.
The darker period of the year lasts for 3.4 months, from November 6 to February 16, with an average daily incident shortwave energy per square meter below 3.8 kWh. The darkest day of the year is December 23, with an average of 2.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Point Piedras Blanca are 35.666 deg latitude, -121.285 deg longitude, and 0 ft elevation.
The topography within 2 miles of Point Piedras Blanca contains only modest variations in elevation, with a maximum elevation change of 410 feet and an average elevation above sea level of 41 feet. Within 10 miles contains only modest variations in elevation (3,002 feet). Within 50 miles contains large variations in elevation (5,863 feet).
The area within 2 miles of Point Piedras Blanca is covered by water (70%) and grassland (16%), within 10 miles by water (64%) and shrubs (14%), and within 50 miles by water (54%) and grassland (24%).
This report illustrates the typical weather at Point Piedras Blanca, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
Point Piedras Blanca has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
The stations on which we may fall back include but are not limited to Paso Robles Municipal Airport; San Luis Obispo County Airport; Salinas Municipal Airport; Monterey Regional Airport; Santa Maria Airport; Vandenberg Range; Lompoc, Vandenberg Air Force Base; and Hollister Municipal Airport.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. 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.