Average Weather at Lawrence G Hanscom Field Massachusetts, United States
At Lawrence G Hanscom Field, the summers are warm, the winters are freezing, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 18°F to 83°F and is rarely below 2°F or above 91°F.
Based on the tourism score, the best time of year to visit Lawrence G Hanscom Field for warm-weather activities is from mid June to mid September.
The warm season lasts for 3.4 months, from June 3 to September 14, with an average daily high temperature above 74°F. The hottest day of the year is July 21, with an average high of 83°F and low of 62°F.
The cold season lasts for 3.4 months, from December 2 to March 13, with an average daily high temperature below 45°F. The coldest day of the year is January 29, with an average low of 18°F and high of 35°F.
Average High and Low Temperature
Average Hourly Temperature
At Lawrence G Hanscom Field, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.
The clearer part of the year at Lawrence G Hanscom Field begins around June 26 and lasts for 4.2 months, ending around November 2. On September 6, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.
The cloudier part of the year begins around November 2 and lasts for 7.8 months, ending around June 26. On February 28, the cloudiest day of the year, the sky is overcast or mostly cloudy 55% of the time, and clear, mostly clear, or partly cloudy 45% 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 Lawrence G Hanscom Field varies throughout the year.
The wetter season lasts 9.2 months, from March 19 to December 25, with a greater than 28% chance of a given day being a wet day. The chance of a wet day peaks at 33% on May 29.
The drier season lasts 2.8 months, from December 25 to March 19. The smallest chance of a wet day is 23% on January 28.
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 at Lawrence G Hanscom Field changes throughout the year.
Rain alone is the most common for 11 months, from January 30 to January 12. The highest chance of a day with rain alone is 33% on May 29.
Mixed snow and rain is the most common for 2.6 weeks, from January 12 to January 30. The highest chance of a day with mixed snow and rain is 9% on January 17.
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. Lawrence G Hanscom Field experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year at Lawrence G Hanscom Field. The most rain falls during the 31 days centered around October 14, with an average total accumulation of 3.9 inches.
The least rain falls around January 24, with an average total accumulation of 1.7 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Lawrence G Hanscom Field experiences significant seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 5.6 months, from October 28 to April 16, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 26, with an average total liquid-equivalent accumulation of 1.2 inches.
The snowless period of the year lasts for 6.4 months, from April 16 to October 28. The least snow falls around July 21, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day at Lawrence G Hanscom Field varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 4 minutes of daylight; the longest day is June 21, with 15 hours, 18 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:07 AM on June 15, and the latest sunrise is 2 hours, 14 minutes later at 7:21 AM on November 3. The earliest sunset is at 4:12 PM on December 8, and the latest sunset is 4 hours, 14 minutes later at 8:26 PM on June 27.
Daylight saving time (DST) is observed at Lawrence G Hanscom Field during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
Lawrence G Hanscom Field experiences significant seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.4 months, from June 8 to September 20, during which time the comfort level is muggy, oppressive, or miserable at least 10% of the time. The muggiest day of the year is July 30, with muggy conditions 41% of the time.
The least muggy day of the year is December 5, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
The average hourly wind speed at Lawrence G Hanscom Field experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.7 months, from November 2 to April 24, with average wind speeds of more than 5.8 miles per hour. The windiest day of the year is February 23, with an average hourly wind speed of 7.5 miles per hour.
The calmer time of year lasts for 6.3 months, from April 24 to November 2. The calmest day of the year is July 31, with an average hourly wind speed of 4.0 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Lawrence G Hanscom Field is from the west throughout the year.
Lawrence G Hanscom Field 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 significant seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.0 months, from June 25 to September 26, with an average temperature above 60°F. The day of the year with the warmest water is August 5, with an average temperature of 65°F.
The time of year with cooler water lasts for 3.8 months, from December 27 to April 22, with an average temperature below 44°F. The day of the year with the coolest water is March 2, with an average temperature of 38°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is at Lawrence G Hanscom Field 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 Lawrence G Hanscom Field for general outdoor tourist activities is from mid June to mid 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 Lawrence G Hanscom Field for hot-weather activities is from early July to late August, with a peak score in the last week of July.
The growing season at Lawrence G Hanscom Field typically lasts for 5.4 months (165 days), from around April 28 to around October 10, rarely starting before April 11 or after May 15, and rarely ending before September 24 or after October 25.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms at Lawrence G Hanscom Field should appear around April 22, only rarely appearing before April 7 or after May 2.
Growing Degree Days
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 3.5 months, from May 5 to August 21, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is June 30, with an average of 6.8 kWh.
The darker period of the year lasts for 3.2 months, from November 3 to February 11, with an average daily incident shortwave energy per square meter below 2.6 kWh. The darkest day of the year is December 24, with an average of 1.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Lawrence G Hanscom Field are 42.470 deg latitude, -71.288 deg longitude, and 148 ft elevation.
The topography within 2 miles of Lawrence G Hanscom Field contains only modest variations in elevation, with a maximum elevation change of 184 feet and an average elevation above sea level of 143 feet. Within 10 miles also contains only modest variations in elevation (449 feet). Within 50 miles contains only modest variations in elevation (3,117 feet).
The area within 2 miles of Lawrence G Hanscom Field is covered by artificial surfaces (64%) and trees (34%), within 10 miles by artificial surfaces (59%) and trees (35%), and within 50 miles by trees (52%) and artificial surfaces (25%).
This report illustrates the typical weather at Lawrence G Hanscom Field, 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
Lawrence G Hanscom Field 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 Lawrence Municipal Airport, Logan International Airport, Norwood Memorial Airport, East Milton, Boire Field, Beverly Municipal Airport, Fitchburg Municipal Airport, and Cranland Airport.
Time zones for aiports and weather stations are provided by AskGeo.com .