Visitation · Park

Piscataway Park visitation by month and year

July is the busiest month at Piscataway, when the average temperature nearby is 78 degrees. January is the quietest, and the average temperature then is 36 degrees. July runs about 2.6 times the visits of January. The crowd arrives with the warm weather and leaves with it. Annual visits fell 16.6 percent, from 329,729 in 2019 to 275,070 in 2025.

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Visits by month, with temperature and precipitation

Visits by month with average temperature, precipitation, Piscataway08.0k16k24k32kJanuary: 11,884 visits on average, 35.5°FJanFebruary: 14,960 visits on average, 37.9°FFebMarch: 24,071 visits on average, 45.4°FMarApril: 27,541 visits on average, 56.1°FAprMay: 29,126 visits on average, 65.2°FMayJune: 30,120 visits on average, 74.1°FJunJuly: 30,566 visits on average, 78.4°FJulAugust: 27,534 visits on average, 76.9°FAugSeptember: 22,222 visits on average, 70.3°FSepOctober: 24,355 visits on average, 58.3°FOctNovember: 21,157 visits on average, 47.8°FNovDecember: 19,380 visits on average, 39.5°FDecJanuary: 35.5°F averageFebruary: 37.9°F averageMarch: 45.4°F averageApril: 56.1°F averageMay: 65.2°F averageJune: 74.1°F averageJuly: 78.4°F averageAugust: 76.9°F averageSeptember: 70.3°F averageOctober: 58.3°F averageNovember: 47.8°F averageDecember: 39.5°F average30°F40°F50°F60°F70°F80°FVisitsRain, inches0.0 in2.0 in4.0 in6.0 inJanuary: 3.08 in precipitationFebruary: 2.89 in precipitationMarch: 4.04 in precipitationApril: 3.38 in precipitationMay: 4.45 in precipitationJune: 4.85 in precipitationJuly: 4.96 in precipitationAugust: 4.16 in precipitationSeptember: 4.37 in precipitationOctober: 3.75 in precipitationNovember: 3.13 in precipitationDecember: 3.75 in precipitation
Bars are the average recreation visits in each month over 2021 to 2025. The line is the average temperature at Oxon Hill, 8 miles from the park's reference point at 190 feet, station USC00186800 in the NOAA 1991 to 2020 climate normals. The lower panel is monthly rain from the same station, which publishes no snowfall normal.

Annual visits, 1979 to 2025

Annual recreation visits, Piscataway0100k200k300k198019902000201020201979: 137,9711980: 160,9121981: 116,6781982: 118,5451983: 69,7121984: 58,0781985: 58,6081986: 76,4251987: 87,6581988: 56,1571989: 181,1061990: 270,0081991: 164,4631992: 213,4941993: 139,1651994: 133,7581995: 147,5411996: 194,4941997: 245,2281998: 233,5711999: 239,0082000: 201,1772001: 251,2612002: 229,6072003: 184,8232004: 190,7452005: 176,1742006: 199,4432007: 184,6362008: 324,3942009: 234,1862010: 248,3142011: 279,0602012: 124,1072013: 161,9992014: 109,4732015: 148,7292016: 123,3812017: 154,0112018: 146,3642019: 329,7292020: 166,4842021: 279,5382022: 243,2122023: 282,5072024: 334,2602025: 275,0702025: 275k
Recreation visits per calendar year. A year with a missing month is left blank rather than estimated.

The last ten years

YearRecreation visitsChange on prior year
2025275,070-17.7%
2024334,260+18.3%
2023282,507+16.2%
2022243,212-13.0%
2021279,538+67.9%
2020166,484-49.5%
2019329,729+125.3%
2018146,364-5.0%
2017154,011+24.8%
2016123,381-17.0%

Visitation at other parks

George Washington Memorial ParkwayAppalachian National Scenic TrailRock Creek ParkPrince William Forest Park

Source: NPS Visitor Use Statistics, monthly recreation visits, as compiled for Publicopia Labs. A year is shown only when all twelve months were reported. Temperature, precipitation and snowfall normals are the 1991 to 2020 monthly averages published by NOAA NCEI for station USC00186800, 190 feet above sea level. Data refreshed October 14, 2026.