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Question: How's the seasonal weather in Herndon?

Answer: Herndon Seasonal temperature break down - The average median temperature March through May is approximately 59°F with highs averaging at 69°F and lows averaging at 49°F. June through August has an approximate average median temperature of 76°F with highs averaging at 86°F, lows typically average at 68°F. Average median temperatures September through November average out at 60°F, high temperatures average out at 72°F and lows average at 49°F. The average median temperature December through February is approximately 42°F with highs averaging at 52°F, lows average out at 34°F. The average Herndon annual median temperature averages out at approximately 59°F. The coldest month in Herndon is January with a median temperature of 37°F, the average high for the month of January is 46°F with an average low of 30°F. The hottest month in Herndon is July with an approximate median temperature of 78°F, the average high for the month of July is 87°F with an average low of 70°F.

Question: What type of clothing should I pack for my trip to Herndon?

Answer: If you plan on traveling to Herndon from March through May you will want to pack a couple of lightweight long sleeve shirts, lightweight jeans or pants. You should also think about packing a couple of t-shirts and possibly a pair of shorts for the hotter days, for the cooler days or nights you may want to think about packing a lightweight jacket or a lightweight sweater. Those of you who will be traveling to Herndon from June through August should think about packing some short sleeve shirts and shorts. You may also want to pack a tank top as it can sometimes get pretty hot during the day. You should also consider packing a lightweight long sleeve shirt and jeans as there's a possibility you can run into a cooler night. Folks that will be traveling to Herndon September through November may want to consider packing a couple of lightweight long sleeve shirts and jeans, you will also want to consider packing a lightweight jacket for cooler days or nights. Those of you that will be traveling to Herndon from December through February will want to pack a number of sweaters, long sleeve shirts, jeans and a jacket.