This shows the number of weather stations (both ham and non-ham) sending directly to APRS-IS servers. The information for packets is here.
| Year | Mon | Day | Hour | AMB1 | AMB2 | CWOP-3 | CWOP-4 | CWOP-5 | CWOP-6 | CWOP-7 | 5th | 1st | 4th | 2nd | 6th | 9th | 8th | 3rd | other | Total |
| 2025 | 04 | 07 | 15 | 1503 | 556 | 2694 | 1850 | 2155 | 2052 | 2805 | 24 | 42 | 28 | 32 | 21 | 31 | 37 | 46 | 2215 | 16091 |
| 2025 | 04 | 07 | 14 | 1505 | 556 | 1691 | 2037 | 2106 | 2974 | 2734 | 32 | 25 | 34 | 38 | 18 | 33 | 34 | 44 | 2210 | 16071 |
| 2025 | 04 | 07 | 13 | 1504 | 556 | 1737 | 2107 | 2041 | 2605 | 3038 | 35 | 24 | 28 | 37 | 23 | 37 | 35 | 44 | 2206 | 16057 |
| 2025 | 04 | 07 | 12 | 1503 | 556 | 1715 | 2078 | 2611 | 1958 | 3157 | 33 | 25 | 30 | 39 | 19 | 35 | 36 | 41 | 2195 | 16031 |
| 2025 | 04 | 07 | 11 | 1505 | 556 | 2478 | 2160 | 2312 | 2121 | 2441 | 32 | 23 | 30 | 30 | 28 | 22 | 51 | 37 | 2188 | 16014 |
| 2025 | 04 | 07 | 10 | 1506 | 555 | 1671 | 2134 | 2691 | 2294 | 2711 | 32 | 26 | 28 | 46 | 28 | 24 | 34 | 39 | 2179 | 15998 |
| 2025 | 04 | 07 | 09 | 1505 | 555 | 2950 | 2081 | 2048 | 2203 | 2216 | 26 | 29 | 29 | 36 | 23 | 32 | 41 | 40 | 2175 | 15989 |
| 2025 | 04 | 07 | 08 | 1504 | 554 | 2570 | 1882 | 2384 | 2097 | 2564 | 21 | 28 | 46 | 39 | 33 | 23 | 32 | 34 | 2160 | 15971 |
| 2025 | 04 | 07 | 07 | 1503 | 554 | 1984 | 2048 | 2124 | 2668 | 2659 | 25 | 25 | 47 | 33 | 21 | 25 | 40 | 46 | 2154 | 15956 |
| 2025 | 04 | 07 | 06 | 1503 | 554 | 2225 | 1663 | 2979 | 2338 | 2272 | 35 | 25 | 37 | 25 | 23 | 30 | 33 | 47 | 2144 | 15933 |
| 2025 | 04 | 07 | 05 | 1503 | 555 | 2613 | 1838 | 2416 | 2390 | 2204 | 24 | 27 | 33 | 35 | 27 | 24 | 43 | 33 | 2138 | 15903 |
| 2025 | 04 | 07 | 04 | 1504 | 555 | 2445 | 1944 | 2282 | 2187 | 2597 | 26 | 24 | 33 | 25 | 25 | 32 | 37 | 50 | 2118 | 15884 |
| 2025 | 04 | 07 | 03 | 1502 | 555 | 2828 | 1838 | 2216 | 2185 | 2377 | 24 | 32 | 35 | 42 | 20 | 22 | 36 | 43 | 2106 | 15861 |
| 2025 | 04 | 07 | 02 | 1504 | 554 | 2089 | 2025 | 2857 | 2082 | 2371 | 28 | 26 | 35 | 37 | 24 | 29 | 40 | 39 | 2088 | 15828 |
| 2025 | 04 | 07 | 01 | 1506 | 552 | 2018 | 1610 | 1964 | 2995 | 2798 | 30 | 31 | 33 | 34 | 25 | 30 | 40 | 34 | 2052 | 15752 |
| 2025 | 04 | 07 | 00 | 1506 | 557 | 1891 | 2155 | 2577 | 2475 | 2485 | 19 | 33 | 37 | 35 | 25 | 25 | 46 | 38 | 2262 | 16166 |
| 2025 | 04 | 06 | 23 | 1504 | 556 | 2265 | 1902 | 2462 | 2137 | 2810 | 22 | 29 | 36 | 23 | 25 | 32 | 39 | 47 | 2270 | 16159 |
| 2025 | 04 | 06 | 22 | 1502 | 557 | 2116 | 2188 | 1874 | 2336 | 3057 | 27 | 24 | 31 | 36 | 20 | 37 | 33 | 42 | 2268 | 16148 |
| 2025 | 04 | 06 | 21 | 1501 | 557 | 1976 | 1725 | 1766 | 2696 | 3409 | 32 | 25 | 27 | 30 | 22 | 40 | 44 | 37 | 2257 | 16144 |
| 2025 | 04 | 06 | 20 | 1506 | 555 | 2454 | 2046 | 2187 | 2016 | 2853 | 32 | 37 | 35 | 27 | 22 | 28 | 38 | 37 | 2261 | 16134 |
| 2025 | 04 | 06 | 19 | 1501 | 555 | 2048 | 2002 | 1872 | 3065 | 2568 | 35 | 24 | 29 | 27 | 26 | 32 | 54 | 40 | 2243 | 16121 |
| 2025 | 04 | 06 | 18 | 1504 | 553 | 2664 | 2065 | 1861 | 2852 | 2106 | 22 | 23 | 38 | 46 | 15 | 39 | 40 | 33 | 2248 | 16109 |
| 2025 | 04 | 06 | 17 | 1503 | 552 | 2085 | 1971 | 2165 | 2252 | 3066 | 27 | 38 | 27 | 31 | 28 | 34 | 48 | 34 | 2234 | 16095 |
| 2025 | 04 | 06 | 16 | 1500 | 552 | 1871 | 1988 | 2777 | 2722 | 2175 | 29 | 23 | 29 | 27 | 30 | 31 | 46 | 41 | 2243 | 16084 |
| 2025 | 04 | 06 | 15 | 1498 | 553 | 1880 | 1948 | 2534 | 2617 | 2544 | 24 | 26 | 37 | 30 | 29 | 34 | 35 | 45 | 2239 | 16073 |
| 2025 | 04 | 06 | 14 | 1501 | 553 | 2053 | 1857 | 2708 | 1947 | 2949 | 22 | 28 | 37 | 39 | 31 | 30 | 43 | 33 | 2229 | 16060 |
| 2025 | 04 | 06 | 13 | 1501 | 553 | 2380 | 1790 | 2480 | 2355 | 2495 | 15 | 32 | 19 | 31 | 30 | 31 | 44 | 51 | 2237 | 16044 |
| 2025 | 04 | 06 | 12 | 1501 | 552 | 1795 | 1963 | 2054 | 2593 | 3088 | 23 | 44 | 30 | 32 | 15 | 26 | 39 | 51 | 2223 | 16029 |
| 2025 | 04 | 06 | 11 | 1502 | 552 | 2198 | 2058 | 2602 | 2317 | 2311 | 22 | 31 | 26 | 43 | 29 | 35 | 35 | 28 | 2221 | 16010 |
| 2025 | 04 | 06 | 10 | 1502 | 552 | 2474 | 2096 | 2596 | 2371 | 1943 | 24 | 27 | 41 | 33 | 22 | 32 | 38 | 35 | 2206 | 15992 |
| 2025 | 04 | 06 | 09 | 1502 | 552 | 1768 | 2210 | 2327 | 2165 | 3004 | 20 | 33 | 44 | 32 | 24 | 27 | 40 | 36 | 2199 | 15983 |
| 2025 | 04 | 06 | 08 | 1499 | 552 | 2015 | 1859 | 2717 | 2236 | 2646 | 28 | 19 | 35 | 32 | 31 | 34 | 37 | 34 | 2198 | 15972 |
| 2025 | 04 | 06 | 07 | 1499 | 553 | 2277 | 2136 | 2274 | 2026 | 2745 | 23 | 32 | 22 | 34 | 24 | 35 | 41 | 42 | 2183 | 15946 |
| 2025 | 04 | 06 | 06 | 1503 | 553 | 1960 | 1829 | 2234 | 2177 | 3239 | 22 | 22 | 36 | 43 | 21 | 27 | 41 | 45 | 2164 | 15916 |
| 2025 | 04 | 06 | 05 | 1498 | 553 | 2705 | 1866 | 2042 | 2094 | 2725 | 31 | 38 | 32 | 25 | 30 | 33 | 40 | 29 | 2155 | 15896 |
| 2025 | 04 | 06 | 04 | 1496 | 553 | 2068 | 2012 | 1941 | 2651 | 2757 | 28 | 27 | 29 | 31 | 23 | 32 | 39 | 42 | 2148 | 15877 |
| 2025 | 04 | 06 | 03 | 1499 | 551 | 2273 | 1912 | 1789 | 2655 | 2779 | 18 | 32 | 29 | 24 | 22 | 28 | 50 | 46 | 2137 | 15844 |
| 2025 | 04 | 06 | 02 | 1498 | 550 | 2024 | 1761 | 2230 | 2583 | 2803 | 24 | 30 | 27 | 33 | 26 | 18 | 41 | 44 | 2120 | 15812 |
| 2025 | 04 | 06 | 01 | 1498 | 551 | 2063 | 1746 | 2396 | 2254 | 2902 | 32 | 22 | 30 | 27 | 21 | 32 | 37 | 48 | 2091 | 15750 |
| 2025 | 04 | 06 | 00 | 1503 | 556 | 2636 | 2029 | 2045 | 2336 | 2518 | 28 | 35 | 37 | 26 | 27 | 27 | 38 | 43 | 2284 | 16168 |
| 2025 | 04 | 05 | 23 | 1501 | 556 | 1800 | 2137 | 2654 | 2151 | 2820 | 23 | 18 | 34 | 38 | 25 | 25 | 44 | 40 | 2294 | 16160 |
| 2025 | 04 | 05 | 22 | 1500 | 555 | 2434 | 2027 | 2063 | 2839 | 2196 | 25 | 24 | 28 | 30 | 32 | 29 | 53 | 35 | 2283 | 16153 |
| 2025 | 04 | 05 | 21 | 1500 | 555 | 2994 | 2038 | 2455 | 1704 | 2364 | 31 | 29 | 31 | 27 | 39 | 30 | 39 | 32 | 2276 | 16144 |
| 2025 | 04 | 05 | 20 | 1498 | 556 | 2074 | 2102 | 2909 | 2002 | 2461 | 29 | 37 | 24 | 27 | 32 | 28 | 44 | 36 | 2276 | 16135 |
| 2025 | 04 | 05 | 19 | 1501 | 556 | 2510 | 1884 | 2142 | 2630 | 2378 | 16 | 29 | 36 | 32 | 28 | 30 | 50 | 38 | 2265 | 16125 |
| 2025 | 04 | 05 | 18 | 1500 | 556 | 1798 | 2045 | 2482 | 2415 | 2800 | 14 | 23 | 36 | 28 | 32 | 29 | 45 | 50 | 2265 | 16118 |
| 2025 | 04 | 05 | 17 | 1501 | 556 | 2445 | 1963 | 2642 | 2269 | 2212 | 36 | 22 | 33 | 26 | 24 | 33 | 42 | 36 | 2263 | 16103 |
| 2025 | 04 | 05 | 16 | 1500 | 556 | 2595 | 1964 | 2361 | 2119 | 2488 | 33 | 15 | 29 | 31 | 26 | 33 | 40 | 48 | 2256 | 16094 |