An official website of the United States government
| include graphs include annual averages | ||||||
Data extracted on: August 2, 2020 (2:47:42 AM)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 2 | -92 | 181 | 231 | 540 | -139 | -84 | -5 | -65 | 268 | 125 | 72 | |
| 2011 | 19 | 212 | 235 | 314 | 101 | 236 | 60 | 126 | 233 | 204 | 132 | 202 | |
| 2012 | 354 | 262 | 240 | 82 | 100 | 73 | 152 | 172 | 187 | 159 | 156 | 239 | |
| 2013 | 191 | 278 | 139 | 191 | 222 | 181 | 112 | 242 | 187 | 225 | 264 | 69 | |
| 2014 | 175 | 166 | 254 | 325 | 218 | 326 | 232 | 188 | 309 | 252 | 291 | 268 | |
| 2015 | 191 | 271 | 71 | 284 | 331 | 174 | 302 | 125 | 155 | 306 | 237 | 273 | |
| 2016 | 73 | 263 | 229 | 187 | 42 | 267 | 354 | 135 | 269 | 145 | 151 | 230 | |
| 2017 | 185 | 188 | 129 | 197 | 155 | 216 | 215 | 184 | 18 | 267 | 225 | 130 | |
| 2018 | 121 | 406 | 176 | 137 | 278 | 219 | 136 | 244 | 80 | 201 | 134 | 182 | |
| 2019 | 269 | 1 | 147 | 210 | 85 | 182 | 194 | 207 | 208 | 185 | 261 | 184 | |
| 2020 | 214 | 251(C) | -1373(C) | -20787 | 2699(P) | 4800(P) | |||||||
| C : corrected P : preliminary | |||||||||||||