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 | 01 | 09 | 1491 | 557 | 2156 | 1825 | 2348 | 2273 | 2876 | 22 | 37 | 25 | 37 | 23 | 27 | 34 | 46 | 2210 | 15987 |
| 2025 | 04 | 01 | 08 | 1492 | 557 | 2679 | 1593 | 2194 | 2441 | 2561 | 31 | 35 | 21 | 34 | 25 | 31 | 37 | 36 | 2202 | 15969 |
| 2025 | 04 | 01 | 07 | 1491 | 557 | 2414 | 1761 | 2425 | 2668 | 2197 | 34 | 24 | 34 | 25 | 25 | 33 | 42 | 40 | 2182 | 15952 |
| 2025 | 04 | 01 | 06 | 1489 | 556 | 1799 | 1576 | 2447 | 2795 | 2832 | 26 | 25 | 29 | 33 | 35 | 30 | 30 | 41 | 2179 | 15922 |
| 2025 | 04 | 01 | 05 | 1490 | 556 | 1905 | 1663 | 3027 | 1959 | 2879 | 29 | 21 | 39 | 33 | 24 | 28 | 37 | 40 | 2155 | 15885 |
| 2025 | 04 | 01 | 04 | 1490 | 556 | 2575 | 1922 | 2451 | 2202 | 2270 | 30 | 29 | 44 | 27 | 28 | 33 | 30 | 37 | 2136 | 15860 |
| 2025 | 04 | 01 | 03 | 1489 | 554 | 2108 | 2176 | 2394 | 2508 | 2223 | 20 | 34 | 35 | 28 | 35 | 32 | 49 | 27 | 2105 | 15817 |
| 2025 | 04 | 01 | 02 | 1489 | 554 | 2852 | 1652 | 2576 | 2376 | 1932 | 33 | 25 | 33 | 31 | 24 | 32 | 38 | 36 | 2103 | 15786 |
| 2025 | 04 | 01 | 01 | 1490 | 553 | 1826 | 1937 | 2539 | 2387 | 2669 | 24 | 33 | 33 | 27 | 26 | 27 | 37 | 34 | 2069 | 15711 |
| 2025 | 04 | 01 | 00 | 1497 | 555 | 2002 | 1735 | 2373 | 2187 | 3283 | 19 | 32 | 28 | 40 | 21 | 33 | 45 | 39 | 2259 | 16148 |
| 2025 | 03 | 31 | 23 | 1495 | 556 | 2339 | 1690 | 2414 | 2213 | 2919 | 25 | 29 | 31 | 34 | 22 | 38 | 37 | 41 | 2249 | 16132 |
| 2025 | 03 | 31 | 22 | 1493 | 557 | 2107 | 1965 | 2245 | 2036 | 3211 | 21 | 22 | 41 | 27 | 32 | 36 | 44 | 39 | 2242 | 16118 |
| 2025 | 03 | 31 | 21 | 1493 | 557 | 2540 | 2029 | 2392 | 2256 | 2339 | 32 | 21 | 39 | 30 | 22 | 40 | 35 | 38 | 2243 | 16106 |
| 2025 | 03 | 31 | 20 | 1494 | 557 | 2331 | 1711 | 2848 | 2285 | 2378 | 23 | 33 | 31 | 32 | 36 | 34 | 35 | 29 | 2242 | 16099 |
| 2025 | 03 | 31 | 19 | 1494 | 557 | 2577 | 1803 | 2261 | 2084 | 2818 | 26 | 28 | 27 | 38 | 36 | 30 | 35 | 41 | 2228 | 16083 |
| 2025 | 03 | 31 | 18 | 1494 | 557 | 2457 | 1988 | 2314 | 1876 | 2905 | 29 | 28 | 29 | 28 | 28 | 27 | 43 | 42 | 2230 | 16075 |
| 2025 | 03 | 31 | 17 | 1493 | 557 | 2464 | 1760 | 2369 | 1960 | 2982 | 23 | 22 | 34 | 37 | 31 | 25 | 41 | 43 | 2224 | 16065 |
| 2025 | 03 | 31 | 16 | 1492 | 555 | 2371 | 1949 | 2971 | 2032 | 2204 | 30 | 26 | 30 | 36 | 22 | 36 | 35 | 40 | 2215 | 16044 |
| 2025 | 03 | 31 | 15 | 1495 | 555 | 1879 | 2083 | 2178 | 2624 | 2746 | 27 | 19 | 30 | 32 | 26 | 31 | 40 | 47 | 2211 | 16023 |
| 2025 | 03 | 31 | 14 | 1493 | 556 | 2105 | 1766 | 2707 | 1888 | 3034 | 31 | 24 | 29 | 25 | 29 | 37 | 45 | 38 | 2198 | 16005 |
| 2025 | 03 | 31 | 13 | 1489 | 554 | 2256 | 1895 | 2235 | 2341 | 2768 | 32 | 35 | 28 | 32 | 28 | 35 | 31 | 42 | 2183 | 15984 |
| 2025 | 03 | 31 | 12 | 1488 | 554 | 1704 | 2164 | 2597 | 2481 | 2539 | 21 | 22 | 27 | 25 | 30 | 33 | 44 | 46 | 2194 | 15969 |
| 2025 | 03 | 31 | 11 | 1492 | 554 | 1872 | 1849 | 2505 | 2616 | 2623 | 26 | 27 | 36 | 25 | 29 | 27 | 39 | 41 | 2185 | 15946 |
| 2025 | 03 | 31 | 10 | 1492 | 553 | 2048 | 1912 | 2354 | 2376 | 2763 | 28 | 17 | 31 | 38 | 33 | 29 | 39 | 33 | 2186 | 15932 |
| 2025 | 03 | 31 | 09 | 1491 | 553 | 1912 | 1909 | 2864 | 2640 | 2122 | 17 | 25 | 42 | 35 | 22 | 39 | 33 | 44 | 2167 | 15915 |
| 2025 | 03 | 31 | 08 | 1489 | 552 | 2226 | 1878 | 2383 | 1887 | 3070 | 19 | 34 | 35 | 34 | 18 | 30 | 36 | 40 | 2169 | 15900 |
| 2025 | 03 | 31 | 07 | 1490 | 552 | 2006 | 2041 | 1844 | 2178 | 3364 | 25 | 28 | 29 | 26 | 27 | 32 | 36 | 44 | 2160 | 15882 |
| 2025 | 03 | 31 | 06 | 1489 | 553 | 1930 | 1704 | 2360 | 2670 | 2755 | 19 | 30 | 29 | 37 | 29 | 26 | 42 | 34 | 2146 | 15853 |
| 2025 | 03 | 31 | 05 | 1490 | 552 | 2176 | 1916 | 1998 | 3089 | 2226 | 21 | 22 | 32 | 32 | 31 | 23 | 40 | 51 | 2131 | 15830 |
| 2025 | 03 | 31 | 04 | 1488 | 553 | 2772 | 1844 | 1853 | 2421 | 2501 | 22 | 22 | 33 | 26 | 30 | 23 | 33 | 49 | 2137 | 15807 |
| 2025 | 03 | 31 | 03 | 1490 | 553 | 1881 | 1631 | 2654 | 2601 | 2614 | 21 | 33 | 34 | 28 | 26 | 26 | 34 | 42 | 2117 | 15785 |
| 2025 | 03 | 31 | 02 | 1491 | 553 | 1405 | 2025 | 2620 | 2413 | 2895 | 30 | 32 | 31 | 29 | 27 | 30 | 33 | 42 | 2080 | 15736 |
| 2025 | 03 | 31 | 01 | 1489 | 553 | 2372 | 1743 | 2126 | 2459 | 2626 | 32 | 30 | 28 | 34 | 23 | 19 | 31 | 45 | 2060 | 15670 |
| 2025 | 03 | 31 | 00 | 1495 | 555 | 2148 | 2097 | 2764 | 2386 | 2171 | 13 | 30 | 26 | 45 | 34 | 31 | 33 | 42 | 2253 | 16123 |
| 2025 | 03 | 30 | 23 | 1494 | 556 | 2472 | 2088 | 1997 | 2157 | 2847 | 22 | 23 | 26 | 42 | 31 | 35 | 41 | 28 | 2256 | 16115 |
| 2025 | 03 | 30 | 22 | 1495 | 555 | 2465 | 2114 | 2626 | 2216 | 2131 | 30 | 22 | 30 | 25 | 26 | 29 | 41 | 36 | 2268 | 16109 |
| 2025 | 03 | 30 | 21 | 1496 | 555 | 2385 | 2100 | 2227 | 2069 | 2769 | 23 | 28 | 36 | 33 | 29 | 37 | 37 | 35 | 2244 | 16103 |
| 2025 | 03 | 30 | 20 | 1495 | 556 | 2436 | 1932 | 2119 | 2267 | 2792 | 24 | 28 | 28 | 40 | 29 | 37 | 40 | 31 | 2245 | 16099 |
| 2025 | 03 | 30 | 19 | 1500 | 556 | 2643 | 2023 | 1803 | 1899 | 3164 | 30 | 27 | 27 | 31 | 24 | 34 | 45 | 37 | 2243 | 16086 |
| 2025 | 03 | 30 | 18 | 1497 | 556 | 2871 | 2064 | 1993 | 2133 | 2469 | 28 | 25 | 29 | 27 | 26 | 34 | 49 | 37 | 2240 | 16078 |
| 2025 | 03 | 30 | 17 | 1497 | 555 | 1931 | 1923 | 2415 | 2569 | 2688 | 26 | 14 | 30 | 35 | 27 | 36 | 45 | 48 | 2227 | 16066 |
| 2025 | 03 | 30 | 16 | 1494 | 554 | 2233 | 2026 | 2124 | 2916 | 2225 | 30 | 25 | 36 | 32 | 25 | 31 | 36 | 35 | 2234 | 16056 |
| 2025 | 03 | 30 | 15 | 1493 | 555 | 1853 | 1773 | 1974 | 2438 | 3479 | 25 | 23 | 42 | 35 | 23 | 33 | 40 | 37 | 2222 | 16045 |
| 2025 | 03 | 30 | 14 | 1494 | 554 | 2320 | 1984 | 2063 | 2734 | 2408 | 25 | 37 | 30 | 36 | 26 | 19 | 45 | 45 | 2210 | 16030 |
| 2025 | 03 | 30 | 13 | 1494 | 555 | 2236 | 1871 | 2214 | 2359 | 2819 | 23 | 25 | 28 | 38 | 26 | 29 | 39 | 44 | 2216 | 16016 |
| 2025 | 03 | 30 | 12 | 1495 | 554 | 2036 | 1840 | 2294 | 2732 | 2590 | 22 | 26 | 32 | 42 | 28 | 30 | 32 | 37 | 2209 | 15999 |
| 2025 | 03 | 30 | 11 | 1495 | 554 | 1914 | 2088 | 2421 | 2545 | 2513 | 21 | 27 | 27 | 39 | 26 | 33 | 46 | 34 | 2200 | 15983 |
| 2025 | 03 | 30 | 10 | 1499 | 553 | 1981 | 1954 | 2344 | 2916 | 2273 | 24 | 28 | 30 | 25 | 25 | 36 | 29 | 47 | 2201 | 15965 |